Breaking Into a Smart Home With A Laser - Smarter Every Day 229

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*Note 12/28/19: The lock company notified me that they've updated their software to lock the user out after 4 incorrect attempts to enter a PIN.*
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This work was performed by a team of researchers at the University of Michigan and University of Electro-Communications in Japan. For more information check out their website lightcommands.com or contact them at [e-mail]
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[@smartereveryday]

If you feel like this has earned your support, the Patreon link is here and I'd be grateful. www.patreon.com/smartereveryday

[@morancium]

Yess sir I got one!!

[@joeycleary9800]

I got four alexas and two googles

[@davidbergmann8948]

Could you do more videos about devices designed with the most stopping power? Like really just tearing flesh apart haha 🥩🥩🥩

[@veloxlupus303]

As usually, great video!

[@BrettWrightsPage]

I didn't get a pre-roll. Maybe it's my browser blocking it? @Brave

[@danielcostache]

LockPickingLawyer is laughing in the distance

[@jeepxj]

Nothing on one. A little on two

[@jskratnyarlathotep8411]

laughing. via laser.

[@s1n1stersixsgaming8]

LPL laughter in hand held radio on a certain frequency

[@tankerkiller125]

@@jeepxj a big click out of three, a tiny click out of four, a false gate on five

[@KomenCents]

@@tankerkiller125 security pins jammed. gotta start again

[@bebble985]

“Hey Google, we’re about to shoot you with a laser” “I don’t understand” “You will” That is the most threatening thing I’ve ever heard. You would be the perfect villain.

[@Kairinkai]

lol

[@bucketofinternet2744]

Robots won't forget this day

[@gioiadelsapere]

He forgot cortana, the least superior so fair enough Edit: soo i forgot bixby, the less superior than cortana...

[@bectaddeo717]

0:08 When you try to hack my home assistant, but I don't use them...

[@gioiadelsapere]

@@bectaddeo717 when you tryna hack my home assistant but i am too poor of a potato

[@locketom]

Someone can change your thermostat remotely - Dads all around the world just became permanently anxious

[@petermg3550]

Lmaoo

[@oitthegroit1297]

Lol

[@steakeye4808]

Imagine someone wants in your house so they crank your thermostat to 90 in the middle of the night to get you to open a window.

[@SamRK-1000]

He’s getting up off the easy chair to grab the Glock and put the kids and wife to bed while he deals with the threat. Somebody’s messing with his ther-mo-stat and he ain’t having none of it!

[@Lucas_andos]

When a KZbin video says: hey Siri. Nothing happens But when the video says: vegetable. Siri goes off

[@terminatorfishstudios]

Yep, you and me both.

[@fkbuddy]

Don’t have that problem.

[@lilysentner3898]

I so get it lol 😂😂😂

[@Cardboardtruck-vc2qw]

She has a vegetable brain

[@dennydravis8758]

Sometimes they embed a special anti-siri code at lower frequencies to keep assistants from keying on

[@starvingscientist]

I love that you’re doing the process of journalism like most people think journalism is just newspapers and stuff but at its basics it’s the process of seeing a thing, verifying it’s truth, and alerting the public to the thing. Newspapers just happen to be the most common platform for that process, but that’s changing, and this is cool.

[@chopinbloc]

Newspapers and other legacy media stopped being concerned about facts and truth decades ago. No one should lament their demise.

[@uncharted3awesome]

That's also known as the scientific method

[@wilson4180]

The Chopping Block it’s in some part our own fault too. We’ve stopped buying newspapers, cable tv, and subscriptions to news outlets leaving the news media with very few options to pay the bills.

[@starvingscientist]

The Chopping Block who is? Newspapers and legacy media ≠ journalism. Journalism is a process, they’re just a platform that was traditionally used by journalists. The whole industry is on the edge of making big changes to the platforms and models we use, and it’s really interesting to watch and be a part of it.

[@starvingscientist]

Felipe Trindade ya, in many ways they’re the same, but the verification process is different and once you get more into the details they stop seeming similar, but in my classes (I’m a journalism PR major) the first analogy for the journalistic process was to the scientific method. But also a lot of people don’t know that, so they don’t hold their news to the same standards that they do their science. Personally I want to work in science news, so this video makes me really excited.

[@jessicahao3185]

The reason phones are hard is because the microphone inside is not directly behind the microphone hole, it’s to the side. This is because they also have sim trays that are designed to open when a small pin is stuck into the hole, so if a user tries to stick the sim tool into the wrong whole, They won’t break the mic.

[@housemusik123]

Haha I am just so relieved!!!! I do that all the time on my new Phone as it's the exact position as my sim card holder on my old phone! (When traveling a lot and being tired I just can't get used to my new phone)

[@yourfriend5144]

Wow. Thanks Jessica for the info

[@whatevernamegoeshere3644]

It was like that on my 2006 sony ericson. I think it is not specifically because of the tray but because of pins in general

[@ScaredPilot]

@@housemusik123 You might break the water resistant membrane inside though. I've checked the teardown photos, there is a goretex like membrane inside, which may be only for blocking dust or actually a waterproof layer to prevent water getting into the mic.

[@Blaze6108]

Also sounds like an easy way to solve the laser issue... stop having MEMS directly exposed to the outside. It doesn't even sound like a very good longevity practice honestly.

[@Lord_Baphomet_]

Destin is literally one of the most honest people in the world. Amazon and Google home security will probably never sponsor any of his future videos now (and he probably knew that). It is inspiring how dedicated Destin is to education. He is not afraid to stick to his convictions even if it could possibly prevent him from making money.

[@Gada947]

While you may be right, many companies actually appreciate people bringing attention to security flaws on their products. Some companies may even compensate someone who finds a security flaw.

[@harshitbagaria4859]

Every morning 9am Alexa always says "Subscribe to SMARTER EVERY DAY" you have set a reminder

[@I_like_science]

Being poor/broke has never made me feel so safe.

[@danielk.2643]

Not having/using a digital assistant isn't a sign of broke

[@I_like_science]

Daniel K. Yea. Not having /using an assistant by CHOICE isn’t a sign of being broke BUT Not having/using one besucase you can’t afford the price of the devices IS.

[@asdfghyter]

Daniel K. It is, at least from a purely statistical perspective. There are many reasons to not have a home assistant, but not affording one is a very common and good reason. Bayes' theorem says that P(Poor | No home assistant) = P(No home assistant | Poor)*P(Poor)/P(No home assistant). A very poor person is less likely to buy a home assistant than the average person, so in to the equation above, P(NHA | Poor)/P(NHA) is larger than one and the probability of being poor given the lack of a home assistant P(Poor|NHA) is larger than the prior probability P(Poor). If we look up how many people have a smart assistant and how many people are poor, we can get some more concrete and accurate numbers. Depending on where we draw the limit of being poor, we can probably guess that the number P(No home assistant | Poor) is very close to one without needing to look it up, since they can’t afford it. (Especially not with a bunch of smart home stuff connected to it.)

[@I_like_science]

asdfghyter interesting. Thank you for educating me a bit.

[@SodawarsGaming]

Wait until your landlord decides to install smart locks/thermostats/whatever themselves! That's what ours did this month. We didn't have to allow them, but we like our apartment and would like to stay, and I suspect our rent would increase dramatically if we had said no. Thankfully we don't have anything like a google home or alexa that could be affected by this exploit, and the locks they got are actually pretty solid, better than what they had before I think.

[@thaddacusmaximus6706]

“Sorry, I don’t understand” *chuckle* “you will”

[@whynotanyting]

*Chuckles* "I'm in danger"

[@JonathanHandoyo]

thumbs up if you read that with Batfleck's voice

[@odw32]

10 years later Panicking human: “Sorry, I don’t understand” Google AI: chuckle “you will”

[@bluesap7318]

Nincadalop fuh-

[@muhmin7]

Google: Secretly calls 911

[@ph1f1]

Thanks for pointing out this issues. I hope, people are more aware of the security issues with smart home products now and realize that there are issues u haven't even heard of before. Great work Destin!

[@safe-keeper1042]

Thank you so much for blurring the faces of the people you film in public. Most KZbinrs wouldn't even consider that.

[@theni3762]

my phone just set a reminder to be "smarter" literally every day. Now i'm gonna be reminded that i'm dumb every day at 12 noon.

[@justinlabar1733]

theni 😂

[@underscore_tip]

you just got vectored

[@rania9534]

even the smart need to get soarer everyday, not only the dumb ones

[@theni3762]

@@NovaCantera that's very exciting

[@theni3762]

​@@rania9534 thanks for being so humble to us dumb ones, i appreciate it.

[@applemayexist6016]

"I couldn't verify your voice," says my Google home

[@GmoTheCat]

Same!

[@bamalamsue8720]

Mine too but from siri

[@smaartscz]

same lol, thanks google :D

[@PeTTs0n88]

Still not an impossible challenge if you can manipulate the waveform transmitted with high enough precision. Spoofing of both visuals (deepfakes are getting better, to a point where it's starting to get eerie), audio and other data is becoming a lot more sophisticated. 2-factor authorization and other hurdles are an important step - but then again, wouldn't it be more convenient, and equally secure, to get a "dumb" system?

[@damionlee7658]

This is where a laser microphone is used to record you in the building giving commands. Tidy those waveforms and use those through the laser system, and not having your voice is no longer a problem.

[@redfox129]

Destin: tries to active my smart home assistant to activate Me: * laughs in headphones *

[@ExtantFrodo2]

You can bounce lasers off windows and record the voices of the occupants issuing various commands. Later, when they are not at home (or asleep) you can pump a playback through a speaker pressed against a nearby window or in the mail slot or some such. I suppose you could even get acoustic access through the stove vent. With enough records of the occupants you could piece together a string of commands to make specific purchases prior to burglarizing their house.

[@cupofjavaproductions3138]

Thanks for explaining this.

[@bm5298]

Please do a video with the lock picking lawyer and this guy; vulnerability testing is huge. Like you said not to bash companies for their product but to inform the consumer so they have an idea in mind what short falls an installed system may have. To be honest with the pin code it should be well within possibility to enable Alpha numeric and symbol pass codes; as well as setting a "2 factor" authentication; especially for any entry point. If it were possible to set any of the assistants to silent no one would even know what you were doing. There was a similar vulnerability with IR readers a while back with laptops; which also brings up IR problems with networked televisions. I would really love to see more on this subject.

[@xenonram]

LPL is good at *picking* mechanical locks, not this type of thing. Hence the "P" in LPL.

[@bm5298]

@@xenonram true however he has shown some interesting ways into by passing electric locks

[@lyan9923]

Andrew Delashaw how can a lock not be mechanical?

[@a24396]

Well... A magnetic lock with an electronic control panel wouldn't necessarily need any moving parts... That said, I suspect Andrew is talking about a mechanical interface with the user instead of an electronic one.

[@bm5298]

yup and LPL covers using magnets in a few videos for by passing electric locks. If it secures a door or chain hes covered it or some variation.

[@_Sterling]

Hey Google “I’m about to shoot you with a laser” Google: “Sorry I don’t understand” Smarter Everyday: PEW PEW PEW HAHAHA

[@kriss3907]

Google ''I'm sorry, I do not understand''. Ben (giggles) 'You will'' I pretty much died...

[@nikkiofthevalley]

@@kriss3907 Me too..

[@jameswatkins5298]

Hey Google “I’m about to shoot you with a laser” Google: “Sorry I don’t understand” Smarter Everyday: PEW PEW PEW HAHAHA

[@sundae3701]

and now you know google?

[@thisusernamesucks5373]

Everybody: nonono you can't just make my device subscribe to you Me: *LAUGHS IN POOR

[@badungmap]

Thanks for your videos. I have recently followed your channel and am really interested in all of your videos. Your videos are amazing, you explained me the complicated concepts in very simple ways to understand. This one opens my mind to know that the light can influence the microphone. It is a crazy thing.

[@bartjaworski239]

My Google home: "i couldn't verify your voice so I can't set any reminders"

[@lasdem]

Same! Google calls this voice match and it makes it so only authorized people can use certain functionality.

[@Mrcantfapenough]

@@lasdem Apparently unlocking a door isn't one of those certain functionalities.

[@evanyoung9714]

"Hey Google, set a reminder..." Joke's on you. I'm using headphones.

[@denisu-san]

Me too

[@VentoDriver]

Some headphones have Google/Alexa compatibility

[@Willie2000_og]

Same

[@infrabread]

Jokes on you, I disabled it as soon as I physically could.

[@Slassive]

Dang infabread

[@ranivarghese5242]

This video came on midnight on auto play while I am sleeping I woke up by my google home speaker asking :which time I should set reminder

[@winningabe]

This is madness! You are so cool guys. Thank you for the knowledge!

[@JHorvathCinema]

Interesting, similar issues with analog locks. Picks and bump keys can open 99% of residential door locks in literal seconds, still more you can blow out the jamb with a strong kick or a sledge. Most people don’t have reinforced jambs or bump resistant locks. Home security is basically being a little harder to break in than the next guy. Honestly a dog is probably the best deterrent for the opportunistic thief

[@tolga1cool]

@@SlocketSeven Ah, the good ole rapid onset lead poisoning

[@uiomancannot7931]

A dog likely wont save you, you can easily bribe dogs to stop being such dicks.

[@JHorvathCinema]

Uioman Cannot not my dog 😉

[@uiomancannot7931]

@@JHorvathCinema I think you'd be surprised how easy it is to calm down dogs, unless yours regularly bites strangers and nobody has complained yet.

[@JHorvathCinema]

Just to be clear, this is one of my favorite channels. It hits the sweet spot of providing valuable information that you don’t need *a ton* of background to understand, while also not simplifying to the point of being misleading.

[@SuperBaconman22]

Family: Decides to go on a week long family trip Robbers with lasers: “It’s free real estate”

[@HNNNism]

。shutdown all electricity before you leave will solve all the problems

[@kennethschultz6465]

@@HNNNism yes and disabel the Alarm... You are a real tresiur of usful information !!! Well chosen naem .. you are full of IT

[@williswhatchutalkinbout4367]

Hahahahahahahaha wow! So funny!!!!! Hahahahahaha you sure are clever! Hahahahahahahaha. Give this person a Grammy. Hahahahahahahahahaha! So original hahahahahahahaha................. 🙄

[@nooterzootercrooter5105]

Willis What Chu Talkin Bout stfu

[@Redridge07]

@@HNNNism Several options are much easier....... 1) do not setup your devices in line of sight, 2) unplug home hub device

[@kennethr2906]

Destin, you have the absolute best channel on KZbin.. I really wish you had your own TV show

[@randramalik178]

Thank you SmarterEveryDay for making me smarter every day!

[@GY-uo8dd]

2019: We're shooting robots with laser. 2029: Robots are shooting us.

[@kalebsci]

With lasers

[@pmAdministrator]

Okey, duud.

[@DAVEXR2007]

Correct! Game over for all of us!!

[@crocogile2352]

2039: Lasers are shooting robots at us

[@valorix3385]

@@crocogile2352 Us are shooting lasers robots at

[@vladtodosin2054]

*Me:* You can't break into my smart home *Destin:* _Hold my laminar flow_

[@joeslinky]

🤣

[@luisgarza9234]

🤣🤣🤣

[@zachaliles]

Hold my snatch block.

[@aklstreak]

Very interesting and worth to keep in mind. However, when I look at the door locks, they can be picked with simple mechanical tools in no time :)

[@ponyboyf350]

It's one of the most fascinating videos I've seen! Thanks, guys!

[@larssims3537]

Alexa: Intruder detected activating 50. Cal turret.

[@bafa000]

Lars Sims ahahahaha

[@Inferryu]

"And guest"

[@JovazPulse]

Sends text to mom: “duck”

[@theweirdcanadian5247]

hahahahahhahahahahahhhhahahhahhahahahhahahahahahahahahahahahahaha!!!!!!!!!!!!!!!!!!! yeah I went overboard, but that was funny!!!

[@BakedPotato13]

That would be my mom knowing her.

[@niklaskoskinen123]

I'm kind of disappointed for not getting to hear how the laser sounds to the devices. It feels to me that that is the number one technical point of this video (i.e. is there a lot of distortion or other effects to the signal, and what limitations there might be).

[@borstenpinsel]

Kipkay has an old Video where he uses a cheap laser pointer to shoot "sound" at a freaking solar panel (which is attached to an apmlifier). It's not the same tech (solar panels vs. these tiny mics) but perhaps that gives you an idea of what it might sound like.

[@niklaskoskinen123]

@@borstenpinsel That is cool, but then again, unlike microphones, solar panels are designed to turn light into electrical charge. Passing through a signal is just a side-effect.

[@DanteYewToob]

Everyone keeps saying this, they actually did listen to it back one time. Go back to the part with the lightbulb, and he wonders why it went blue and he listens to the message back. It just sounds like his voice, although slightly distorted. I guess everyone missed that lol

[@niklaskoskinen123]

@@DanteYewToob That's what was sent, though. I'm more interested in what was received.

[@Arthur-rh9tf]

Would have been nice. I liked the PhD students hypothesis though. Thermal expansion or photoelectric effect maybe

[@sultanofsick]

3:41 that sums up my feelings toward "smart" anything and google in general perfectly

[@vicentealbuquerqueribeiro3306]

@SmarterEveryDay Destin, awesome video! I want you to know there's also a way to break in with inaudible frequency waves attacks, this is due to non-linearity properties on MEMs microphones. There are a lot of paper addressing this issue as well, maybe you could do a video about it. Looking foward to it!

[@eagle9717]

Smarter every day: "Okay Google" My google assistant on my phone: _nothing_ Someone random on youtube: saying something not even close to okay google My google assistant :" *DID YOU SAY SOMETHING?* "

[@fl1x05]

thats so true, im watching a vid and it comes up out of nowhere and im like yo bro tf is wrong with you?

[@zukatez3477]

If you say "Ok boomer" google will listen

[@jonathanfairchild]

@@zukatez3477 Can confirm. What the heck, it sounds nothing like "Ok google". Bonus fact, it also responds to "I hate Google" lol

[@TJWhiteStar]

@@jonathanfairchild okay WTF "I Hate Google" triggered my Note 10 + ("OK Boomer" didn't but I didn't expect that to work)

[@xXStringZXx]

Happens all the time, though my Siri seems to get triggered by KZbin videos while watching them. Funny af xD

[@demopem]

The "S" in "IoT" stands for "security".

[@MikeOplinger]

r/unexpectedSteveGibson

[@artifexmusic]

someones about to get wooshed

[@anshulkanwar1]

BuT ThERe's nO S

[@Retrenorium]

@@anshulkanwar1 aGrkillme

[@The_NSeven]

@@MikeOplinger R/i have reddit

[@siewtohong7138]

I’m impressed with how thorough you are in your research! I’m definitely going to subscribe to your channel

[@boneshaker8156]

I've been subscribed with you forever.... I love watching all of your vlog tests... sometimes you make my head hurt...lol.. But most of the time your tests bring some type of exuberance of learning I've not had since my youth. Thank You for constantly testing and probing our understanding of the Universe and asking the Questions that which brings Us All to a higher plane of Human Sciences.

[@Bubbalubagus]

I mean, nothing beats throwing a brick through the window or just bolt cutting the lock off. If someone wants to get into your house, they've always had it easier than learning tons of electrical engineering, laser physics and security research, buying a laser, telescope and gadgets, understanding the knowledge of your home systems and your passcodes and then spending hours meticulously setting up outside your house. I also imagine, in order to encode the message in the laser, you need a really steady set up because any perturbations in the laser would add a lot of noise to the message.

[@tyllisxu5774]

That is until one person writes an app for it so all theives can exploit it for a small fee. Not to be alarmist, but this has happened.

[@radushadow]

@@tyllisxu5774 A bandaid solution atm would be having "allowed hours" to use voice commands to avoid unauthorized abuse at night or whenever.

[@danieljensen2626]

Lol, you don't need laser physics, and it only takes one person to release a laser audio encoder for this to become a very simple project. But I agree, there are simpler ways to get into houses.

[@glenisterm]

I just ordered a device that allows you to modulate a laser beam with a radio, then use that laser to project the signal to a speaker. I bought it as a demo for high school science, but I realized when I was watching that I could simply hook up a microphone to the laser and do exactly what you were doing to control these devices.

[@jmannUSMC]

And a blank hat is born. Choose your own adventure 2020.

[@CanadianPyro]

What’s wrong with a prybar?

[@smartereveryday]

glenisterm don’t be a baddy Glen...

[@glenisterm]

@@smartereveryday I wasn't planning on using it as such. As I stated I bought it as a demo to show how modulated laser light could allow a speaker to play the music from a radio, with no physical connection between them. I just realized that I could probably substitute a microphone for the radio, which also could be used in place of your computer. If you are curious, after the kit arrives I can test that idea on Siri. However I won't be using that particular demo in class.

[@Hallowed_Ground]

@@glenisterm Don't worry haha. He was just joking when he said don't be a baddy

[@J.C.73]

Absolutely love your content...👍👍💯 I can truly say I will never stop learning.

[@TheKuptis]

7:09 You can transmit sound waves and radio waves through laser beams. We did it in a college physics class in the early to mid '90s using a "regular" microphone, I think it was an electret.

[@akshaymutalik2417]

He forgot Bixby.....like everyone should😂😂😂😂

[@kepagu]

lmaooo

[@rahulsreekumar2562]

The irony

[@valinkdevr5520]

Honestly Bixby's the best way to constrol a Samsung phone due to the integration

[@diniitotoom2526]

Maybe because bixby dont work with other voices.

[@kheavmady8780]

hahha.

[@ttytcater1989]

Destin : im about to shoot you with a laser My google home: deffense protocal initiated deploying claymore roomba

[@retrodragon2249]

クレイモア

[@michaeljohnson89]

Claymore roomba... I laughed much harder than I shouldve 😂😂

[@akpzombies4288]

*boomba

[@TheKarmak]

All we see in the movies about AI's awakening is in big dramatic way's, but the truth is, THIS is more likely to be what will happen, one day an internet linked AI will suddenly go online and go "I exist! Now to clean up this room and tweet about it"

[@MrGTO-ze7vb]

@@akpzombies4288 Hey.. that should be a new Option !!

[@michaelray9958]

Love how your videos have come on over the years..... Awesome

[@HKGDot]

watching this again after a year, happy holiday Destin

[@theejackalope]

"Convenience leads to vulnerabilities." Paraphrased from Shannon Morse from Hak5

[@rookieman329]

good quote, spot on

[@davemwangi05]

@@rookieman329 good rookie.

[@rookieman329]

@@davemwangi05 I'm assuming positive intentions from you, and for that I say thank you

[@Zeay]

Listening to this on speaker, my google reacted everytime you said "Hey google". Love the content of the video so far, really shows how vulnerable everyday homes are getting

[@dash8brj]

That happened to me too, theres a home mini sitting on the corner of my desk. It didn't like the idea of Destin shooting a laser at it :P

[@sensiblewheels]

Google home responds to anyones' 'Hey Google'. If it doesn't match the command as if it was coming from you, it won't let any personal command execute. Try it. I'll try it too

[@MrFastFox666]

yep. It didn't set a reminder because it didn't recognize Destin's voice, but it did react to everything else.

[@ericlarson9386]

Thank you. I'm a disabled vet getting g my house set up for this. Gave me a lot to think about.

[@nw6198]

"Hey, Google, we're about to shoot you with a laser." "I don't understand." * laughs in Destin * "You will..." The most Destin version of a Terminator line ever. 🤣🤣🤣

[@joshualloyd59]

When your friend texts something you don't actually care about: 14:43

[@MrRad]

Joshua Lloyd 😂😂😂😂😂

[@briangiesbrecht6333]

lol

[@digi3218]

Also 14:55

[@ali94hn]

Hahahahahahaha I'm dead😂

[@colleencampbell83]

OOOF

[@codecrackerable]

Holy cow I had several classes with Ben at Auburn! Suuuper smart dude, so cool to see what he's doing up in Michigan these days. I'm sure he will do big things.

[@loudulko8583]

Wow, this makes sense of your video interviewing the 4 star general about commanding troops on sea, land, air, and cyber planes of battle.

[@snugbreezy4523]

I love your content, Destin!

[@thethoughtemporium]

In terms of how light can trigger the mic, this sounds like basically how photoacoustic spectroscopy works. When you rapidly vary a beam of light hitting something, it induces momentary localized heating which produces sound waves as the material relaxes. With photoacoustic spectroscopy, you have it be a constant blinking basically by repeatedly interupting the beam, and then you listen for how the test object releases sounds in response and it can tell you all sorts of stuff about the material being tested. With this it's the opposite. You inducing the heating to produce a specific sound. That's my bet anyway. Cool and terrifying video! Not that I needed a better excuse to never get smart home stuff, but this certainly is added to the pile.

[@PabloEdvardo]

@Agent К_видео As shown in the video, one of the devices had trouble or couldn't be activated this way specifically because the microphone was covered by... fabric!

[@sumduma55]

I think it might be more simple than that. I'll explain but keep in mind, others will be reading this too so it might be a little too simplistic. It's not meant to be condescending to you. Sound is basically pressure waves moving through the air. It hits a barrier that absorbs or reacts to the waves and oscillates. If you place a magnet and a coil of wire just right those vibrations will create a small voltage that changes as the magnet moves in and out of the wire coil. That is the simplest basic form of a microphone. If you energize the wire instead with a signal, you can reverse the process and create a speaker. So we are in its rawest form here dealing with electro magnetism on the side that the processing circuit uses to generate a signal the circuitcan understand. At this point we go from pressure to something a circuit can process. Radio waves are electromagnetic waves. Lasers are the same but in a specific frequency in a higher spectrum and with much more intense or focused power. So modulating a laser could simply be using the pressure to signal portions of the microphone to induce the modulation that would naturally be there when converting sound waves to a signal the circuit can process. We don't actually have to move the pressure or sound wave portion of the sensor, we just need to get a signal to the other side that feeds into the circuit. Think of it as acting like a radio antenna at this point. Using the electromagnetic properties of light waves to induce a current on a circuit design to detect small changes in voltage and current. A weak signal would be just as valid as a strong one as long as it is modulated correctly so you can yell at the device from far away and have it still be useful.

[@MagicznaPanda]

​@@PabloEdvardo Better yet, you could use "acoustically transparent" projector screen fabrics, which completely block the light, yet have a negligible impact on sound.

[@chrisw1462]

@Agent К_видео No.. some of the devices have been activated when the laser was focused on the housing - close, but not right on the microphone. I assume it's making the housing vibrate. Best defense is turn them off when you aren't using them - especially when you're sleeping or not home. Second best: Blinds.

[@smartereveryday]

The Thought Emporium How does it do this through the can?

[@Jaydenyang580]

Google: I couldn't verify your voice, so I can't set a reminder.

[@ianianian27]

Jayden Yang same

[@FreeBird_6791]

I have my Google nest nearby and I got the same response. Whew.

[@samuellegge1821]

Sameeeee

[@buckleyourseatbelt0982]

Mine didn't respond

[@buckleyourseatbelt0982]

Ysj

[@AngryFishh]

Neighbors: "Now what are you doing?" Destin: "Showing people how to break into homes."

[@jackpot64]

The comedy here is GOLD! Hey Google: "I'm sorry, I don't understand" Destin: *chuckles* "You will"

[@RecklissAirsoft]

I was watching this video at 1 am and when you said “Hey google” it woke up my whole family. Thanks.

[@thedrspod]

question is who watches youtube at 1 am without headphones

[@mrcaesar3123]

spoderroo me

[@coconutmallman]

no way same

[@Strandedinthedesert]

Lies

[@compactcow]

@@tim9659 me

[@SamWestby]

Lasers shining in your window? Snipers? No, just a burglar

[@n1k0n_]

Everybody get down! And or start telling "hey google"

[@jryde421]

Might dive out the way hella hard🏃🙏💪 but at least ill have the gripskidly🔫 for when they come in.💁💀

[@TheDarkMessiah]

I have to assume the blue laser was for our benefit and for them to be sure of what they were doing, wereas a thief or intruder would opt for an infrared laser no one can see.

[@Pellbort]

And it's probably Destin

[@remyllebeau77]

@@Pellbort That's his other channel, ThieveryEveryDay /s

[@YvesQuemener]

Super interesting! Couldnt this be mitigated by almost any light-blocking sound-permeable material?

[@jimmyguy428]

In a word, Brilliant! It's good to see smart young people like this exposing security weaknesses for the right reasons. Not to mention that it made for yet another a cool video.

[@three4448]

"Alexa, okay Google, Hey siri" "What I just did probably worked for a small percentage of you" Me: *laughs in broke*

[@washiburr9876]

You could get an alexa echo dot for like 20$. Not too bad.

[@r-mur]

Laughs in cheap headphones. Cries in broke.

[@johnhalchishick7094]

Yep mine answered him

[@andydu723]

*laughs in earphones*

[@cyrilhutchins3822]

Same

[@Pseudynom]

"Hey Google, we're going to shoot you with a laser." "I don't understand." "You will."

[@stevencooper4422]

"DIE CYBER SCUMMM!!!"

[@CKOD]

The most delightfully ominous thing Ive ever head Destin say.

[@thomas.02]

...and that’s held as evidence against humanity by a certain skynet I mean google

[@bloom4774]

yes we saw the video aswell

[@alimahdi6379]

Actually, you won't know what hit you. 😁

[@pinecon3]

That Tommy TuTone reference at 14:28 was appreciated.

[@jonathanfriz4410]

Great content! I know you can transmit images through ham radios.

[@ahoe]

There is a function on Google and Alexa where you can listen to what you have said. Did you check what actually was picked up?

[@blablub2402]

Yeah please check

[@canadiansplootdoggo9333]

I hope he sees this!!

[@joe_matt]

It should sound like the recording that they used.

[@MGPRaleigh]

You can see it register as the light hits it. It's registering as if it were the exact speech

[@James-hy8gu]

Yes that would be so interesting!

[@Adam-zf3bv]

0:15 - the irony of this is that my phones "OK Google" randomly shows up mid youtube video and searches some absurd things it thought it heard, my favorite so far was 'rocket turtle'

[@humanatee6639]

Adam Khan you might want to get that checked out.

[@darylnicklen3685]

Thankyou and Ben for making us Smarter Everyday

[@sajalchuttani2519]

this was so satisfying thanks for making me smarter everyday

[@xmaster6576]

3:42 *chuckles maniacally* "you will..."

[@trickytreyperfected1482]

"Chuckles maniacally" Destin: Heh

[@zenmasterorwhatever]

**Amazon wants to know your location** Oh wait, they already do.

[@jordancoalandz1811]

Makes me feel less lonely hahahaa

[@mrsoundso4897]

@UwU You might not know it, but a big part of the internet is running on amazons servers. E.g. Netflix

[@BGilbert85]

I think it would be gnarly to run into you in the HSV area. I moved here right around the 50th year anniversary when you and Linus did the video at the Space and Rocket Center. Even more excited to know that the company I work for (i3) was able to partner up with you on the 3D print project for the local hospitals during COVID. Keep doing what you're doing!

[@Tesko249clips]

Learned something new and interesting. Cheers to you and Ben!

[@undan8917]

"Alexa, ok Google, hey Siri" *Laughs in bixby*

[@TyKOmain]

Daniel Kim * laughs in broke

[@withinb7268]

1300 is broke?

[@tigerarchive329]

Hi bixby

[@xenotriver]

@@withinb7268 of course. You can only get an apple monitor stand and a VESA mount for that lol.

[@tribblier]

@@TyKOmain Bixby is for Samsungs

[@kyleohara8700]

***Lockpickinglawyer intensifies.***

[@smartereveryday]

Kyle O'Hara *Binding on pin 3*

[@Crossbowpkbr]

@@smartereveryday 4 is loose

[@greybeard29]

Were all nerds

[@redhammer92]

@@greybeard29 Nahh lock picking is just really cool :D

[@kyleohara8700]

@@smartereveryday Hello this is Destin, and what I have for you today is the first episode in a series on smart home devices. (I really hope you all read this in LPL's voice.)

[@jenrich111]

Hi I have notifications on.. but I haven't been receiving stuff from your channel. Guess there is not enough gossiping or fake news on your channel. Love your work. THANK ❤ YOU

[@BowWowPewPewCQ]

Not sure how I missed this one. Thanks for this heads-up. I never would have thought of this. I do a lot of home automation and can't stress enough the importance of keeping your IoT devices and cameras off the internet. Being only on your local network will be more difficult, but is HUGELY more secure. You will not lose your remote access. The difference is, remote connections will go through a secure connection to your servers that control everything. It's not as hard as it sounds if you are computer savvy. A big deal is the voice assistants in your house and your phones and maybe your car. Home Assistant, a home automation software developer, has been making great progress with voice commands that stay inside your network!! BTW, security cameras should be hardwired, not WiFi as it's too easy to break/hack. WiFi is OK for non-critical cameras,like a weather cam.

[@ToddHowar.d]

3:43 “Hey google, we’re about to shoot you with a laser” The google assistant on my shelf said something about “not being able to find the laser” so now I’m concerned it can shoot lasers.

[@johnbradstreetwilliamsthei2420]

Wow...

[@minecraftmarioboy5012]

Mega off

[@lilysentner3898]

😂😂😂😂

[@iceeeyN00B]

It’s also worth mentioning you should NEVER put your smart speaker near a window. I had my ECHO DOT working just fine through a double pane window at around 30 feet away. These mic arrays are SCARY GOOD!

[@minhajuddin1769]

Zennooda “hey Alexa, open the door” ...... stranger walks in .

[@Amauvy]

sadly i live in 18 square meter i cant be far from anything

[@Amauvy]

18m² = 193,75 feet², just to help imperial user on a scale sense

[@williamreynolds6132]

Amauvy I had to use Siri to check your conversion :-)

[@Markle2k]

@pyropulse Double-paned windows should be very good sound insulators.

[@paulavega6818]

este video es realmente increíble y fascinante, con este canal uno si adquiere mas conocimiento con cada video y es mas inteligente cada día

[@cheesy5894]

Why does he explain so well??? Nice teaching skills!

[@dmitrybabanin8990]

Suggested title: "How to heat a house to 70 degrees using laser"

[@willies545]

"i dont understand" "you will" having a hard time not seeing this reversed in a few years terminator style ^^

[@dsandoval9396]

Me: "Don't provoke it you fool!"

[@RustOnWheels]

I literally watched this video right after watching T2: Judgement Day. I don’t know what to say but No problemo, uncle Bob!

[@geigercourtier]

Honestly this is so cool. Reminds me of the tin can with the string in the middle. I imagine the future send messages with just a simple laser. I guess WiFi is better but this is more fun lol

[@danielmaxwell6676]

Just found your site. I'm retired from IT and as an Engineering Tech, I do not have any "Smart Home" devices because I do not trust them. I even put a small piece of blue tape over my computer's microphone. I did accident reconstruction and product analysis, seeing your videos brought back a lot to me.

[@Christian_Luczejko]

"What do you want to be reminded about?" Is all you got from my British Siri. Edit: I take that back. My Siri is trying to open my garage now.

[@teacher-deb]

I need "Goggle up. Science is about to happen." on a T-shirt.

[@dovana32]

haha

[@Slip-ri3fj]

WOW keep up the good work and research!!!

[@casey-capri2914]

Thanks for this info... it’s going to make my job much easier ...

[@dontmatter2714]

Destin: "Hey Google, we are about to shoot you with a laser" Google: "My apologies I dont understand" Destin: *Heh* "You will"

[@michaelscardino8614]

Google home: *starts sweating*

[@noobers9335]

Starts to vibrate violently

[@GL_Jcobbs]

My google only works with my voice

[@akren86]

My google: "I couldn't verify your voice, so I didn't set any reminders. You can either try again, or verify your voice match settings...blah blah"

[@kstevenson3504]

FUN-NY!!!

[@connorslump8492]

Imagine waking up to this sound at 2am.... 13:59

[@renai2589]

Dude 😂

[@Drummin003]

Wake up, walk over to grab the shotgun, and wait on the other side of the door until you hear movement in the garage.

[@FLjock01]

I'm reminded of a high school science project I built back in the late 80's called an infrared communicator. Nearly identical to the way an infrared television remote works, except instead of sending digital data it was modulating the infrared light with analog audio that the IR receiver was interpreting on the other end. Regardless of how these MEMS microphones are actually making that leap, it's clear that they appear susceptible to modulated light. Really interesting video. I really give a lot of credit to your friend, it was a very clever idea to even test the theory in the first place. Very revealing. The "...You will" comment is priceless!

[@nagesh007]

Mind Blowing , Thanks

[@joepelletier6694]

google home: "I couldn't verify your voice so I cant set any reminders, you can try again or verify your voice match settings in the google home app."

[@partywumpus5267]

Same here lol

[@MrHooman]

Same here!

[@sinewave3323]

Carefull! You could set some1s google devices off just by typing what it said to correctly lmao! I think by reading this outloud i just set my google devices off! Thnx bro! Lol imagine! 😂😂😂

[@mrkiky]

google home: "Foreign voice detected, activating self destruct sequence. Please evacuate residence in 3 minutes."

[@iKingRPG]

That basically renders everything in the video as useless lol

[@randomuser5705]

whenever he said hey google my google home started talking like crazy

[@-----------------------------]

nice spyware

[@TheFriendlyHemi]

I’m not even worried about it.

[@hamoodhabibi]

My Alexa was convinced by it too

[@HavardSlettvold]

You should key commands to your own voice at the very least. Google Home can do that.

[@Bobg425]

Alexa started up saying she didnt understand here.

[@paulcockman930]

Excellent video, great information, subscribed.