How To Securely Delete Files

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Mental Outlaw

Mental Outlaw

Күн бұрын

Пікірлер: 323
@gordonfreemanthesemendemon1805
@gordonfreemanthesemendemon1805 3 жыл бұрын
for anyone seeing this vid later, you should be aware that software overwrites are inherently risky. on a HDD the magnetic head is not 100% accurate so parts of the data spills over horizontally and can be partially recovered even after overwriting. Even in SSDs if parts of the drive are damaged, software will obviously not be able to do anything to that data. The 35 pass overwrite mentioned in this video is called the "Gutmann method", and it was designed to mitigate the effects of HDD imprecision. It is quite outdated. Many of those 35 passes are irrelevent and you can cut down on the number considerably and be decently safe. but, no matter how many passes you do, there is still no guarantee of safety. If a government really wants your data for some reason, the best thing you can do to avoid a re-education camp is destroy the drive physically. Overwrite the data a bunch of times and then throw the whole thing into a furnace and then pray that aliens havent bestowed time travel upon the fbi yet.
@fosres
@fosres 3 жыл бұрын
Just burn the drive in the microwave like Mr. Robot. Sounds like a more economically-friendly option.
@fosres
@fosres 3 жыл бұрын
@L. Kärkkäinen Thanks for the clarification XD
@misakamikoto8785
@misakamikoto8785 3 жыл бұрын
you do know encryption exist right? There's a reason why the government even asks Apple to unlock their phone with magic because they can't decrypt it.
@ZReChannel
@ZReChannel 2 жыл бұрын
aka: encrypt your files also, ram modules are a good way to store data you want to obliterate asap, just turn them off and the data will rapidly decay
@firefox1136
@firefox1136 2 жыл бұрын
If you really want to delet a file from any drive, just take the trusty hammer and smash it to dust...
@EpicTyphlosionTV
@EpicTyphlosionTV 4 жыл бұрын
I present you the award for "Most based thumbnail of the year"
@MentalOutlaw
@MentalOutlaw 4 жыл бұрын
Id like to thank all the deplorables that made this possible
@your_new_sjw_waifu
@your_new_sjw_waifu 4 жыл бұрын
@@MentalOutlaw kzbin.info/www/bejne/bF6bZX-YlK90ftk
@EpicTyphlosionTV
@EpicTyphlosionTV 4 жыл бұрын
@Epic Doggerino It's been years since I last came across someone who knew what the thing in my pfp was, lol
@averyj.steele1074
@averyj.steele1074 3 жыл бұрын
The joke is that the government always had Hillary's server and emails. The idea that they didn't was just agitprop to rile up idiots lol.
@sabastianleisek396
@sabastianleisek396 3 жыл бұрын
I'm fine with people bashing on Reps or Dems, at least 9/10 on both sides are dirty.
@chemicalcoal3079
@chemicalcoal3079 4 жыл бұрын
The reason they recommend multiple overwrites of the drive is because the write head will oscillate over the track and its neighbors, this oscillation causes parts of the track to not be overwritten, additionally the write head does overwrite 100% of the media on the track. There are tools that can retrieve data from drives even after they have been overwritten 5-10 times depending on how "unlucky" your overwrites are.
@MatkeRoni
@MatkeRoni 2 жыл бұрын
Can you share some tools? Do you know their success rates?
@jakesllama
@jakesllama 4 жыл бұрын
"Be sure to share it with any friends, family or politiciand that could benefit from file deletion' 😁
@rednath7734
@rednath7734 2 жыл бұрын
yeah i laughed so hard lol
@derektata
@derektata 4 жыл бұрын
Mental Outlaw coming at us with the dankest of memes
@seagie382
@seagie382 2 жыл бұрын
The NSA's official most effective method of data destruction is "turn the drive into a liquid and then back into a solid" (I don't know if you mentioned this as I haven't watched the video)
@davidyoder5890
@davidyoder5890 4 жыл бұрын
So this is mostly true, but there are definitely much better ways to securely delete files from magnetic storage. The one thing I want to point out here is that while overwriting files or free space with 1 pass of zeros is usually _good enough,_ it doesn't actually make it _impossible_ to recover data. There are a great many forensic tools out there that can communicate with the read head of mechanical drives. One of the techniques for recovering overwritten data is to read the magnetic capacitance of the read head for a specific byte. If the value is 0 but the capacitance is such that it is borderline 0, it indicates the value there before the overwrite was a 1. This is a gross oversimplification of the process but it works. There are a lot of patterns used to determine what the previous values were on magnetic media that has been overwritten. When I overwrite drives for my clients, I do it from a GNU/Linux box and use 1 pass of random data. The "good enough" method for me is to use /dev/urandom to give me 256 bits of random data that I pass to openssl as a key, then use that key to encrypt the output of /dev/zero and use dd to write that output to the entire disk (not just a partition). It's a little complicated, but the script is only a few lines. This gets me a write speed of >100MB/sec on a typical 5400RPM drive connected over a USB 3.0 interface. The point is to use 1 pass of random data and not 1 pass of zeros. If someone wants to recover the data from a drive after it's been wiped with random data, their job is much more difficult than it would be if I had only used 1 pass of zeros.
@untheo
@untheo 2 жыл бұрын
Didn't know that someone actually writes zeroes instead of random data. That sounds really stupid.
@andreybashkin9030
@andreybashkin9030 2 жыл бұрын
Due to hysteresis effects the data is still recoverable after several overwrites with random data. Lookup micro-magnetometry.
@davidyoder5890
@davidyoder5890 2 жыл бұрын
@@andreybashkin9030 I'm sure data recovery from magnetic media is possible in nearly all situations aside from melting the platters. What I'm trying to do is provide reasonable data protection in a reasonable amount of time and at a low cost. I can't take the time to write 30 passes of data to a >2TB drive - that would literally take days. And with the method I'm using it would be extremely difficult to recover any data from the drive using data recovery tools available in the consumer market.
@untheo
@untheo 2 жыл бұрын
@@andreybashkin9030 So with this effect you can basically get number of bit switches with some time effect that allows to filter out old data writes?
@andreybashkin9030
@andreybashkin9030 2 жыл бұрын
@@untheo The research that was circulated among my colleagues showed the data was still recoverable from magnetic media after up to 8 random rewrite passes. We (just regular IT, not a security team) operated under assumption that we couldn't simply toss out old HDDs or tapes after simply overwriting them once. You basically overwrite 1 with a zero, but the magnetic media is not Boolean. You don't get a fresh zero, you get something like 0.1 Second pass over the same area with 0 or 1 gives you either 0.01, or 1.09. And so on. These differences were still measurable with proper instruments. Based on this, the researchers were able to pick up tiny fractures of residual values and to re-create original text data for up to 8 rewrites. Just one research.
@eloquenthillbilly
@eloquenthillbilly 4 жыл бұрын
My method is much better. Over write entire drive with spicy memes, encrypt drive, spend $30k+ on a drive shredder, shred drive, recycle shredded bits into new drive, overwrite drive with spicy memes, encrypt drive, use drive for target practice, incinerate drive. Your method is too complicated.
@richmail
@richmail 3 жыл бұрын
i agree, i have a shotgun and a barbague made just for destorying the HDD
@jadonlimoges1830
@jadonlimoges1830 2 жыл бұрын
thermite is pretty cheap to make and would reduce an HDD to a molten slag heap in about 27 seconds
@konz2891
@konz2891 2 жыл бұрын
@@jadonlimoges1830 And its fun too. If I ever need to do this for whatever reason, I'm going the thermite route for dramatic effect.
@ButWhyMe...
@ButWhyMe... 2 жыл бұрын
@Mialisus Did you find the title to the film?
@gayusschwulius8490
@gayusschwulius8490 2 жыл бұрын
@@jadonlimoges1830 Use sulphuric acid-based drain cleaner instead. Cheaper and safer. A bucket of it easily does the job and nobody can read a thing off a completely dissolved HDD (or SSD, for that matter).
@M4tth2w
@M4tth2w 4 жыл бұрын
delete system32 securely and you'll be safe when you install a linux distro.
@akif409
@akif409 2 жыл бұрын
Forgot to like it.. Found the vid again and liked, will also run it muted in loop to increase your watchtime. Great vid, good comments.
@barms9768
@barms9768 2 жыл бұрын
I always download files directly to spinning rust. First, for most documents that aren't HD video or large photo editing projects, you won't see much of a performance difference between opening/editing a document on a HDD vs SSD. Second, if you do download something that you'd rather not be recoverable after you delete it, spinning rust is easier and less destructive to the drive to overwrite with gibberish.
@yeahgirl11
@yeahgirl11 2 жыл бұрын
I had to look up spinning rust haha. I'm still learning about computer tech and I'm super interested on how to make my own computer more secure. Do you recommend the spinning rust over SSDs in general for better protection of data?
@barms9768
@barms9768 2 жыл бұрын
@@yeahgirl11 Like MO said in the video, it's a bit trickier to "wipe" data on NAND/Flash storage, and the attempt will shorten the lifespan of the drive. In general, I always build a desktop with a HDD for documents, and point my download directory to that HDD. You won't see much performance loss compared to an SSD unless you're dealing with really large files. Use an SSD for the OS and programs, HDD for documents. This is only so that programs like Bleachbit or CCleaner can wipe files individually without systematically destroying the drive they are on in the process. As for protecting data that you keep, running encryption for sensitive data should be a first line. I don't think there would be much difference between an SSD or HDD in that respect. Secure-erasing said data would likely be more successful on the HDD, not to mention that HDDs are still cheaper per GB. One thing I don't agree with in this video though, overwriting with just one pass of 1s or 0s. An agency or recovery specialist can see remnants of data based on the magnetic charge of each bit, and that goes for a 1 or a 0. Using the program's "random" function is not good either, for a single pass, because you can still see what the bit used to be compared to what it currently is. Two passes of random data should be a minimum, but even that could still be worked backwards with some effort, considering that your CPU's Random Number Generator isn't exactly as "Random" as the NSA would like you to think it is. I personally run a minimum of three random data passes when I delete data from my HDD, It's something you can set up with your wiping program to work in the recycle bin's right-click menu, and is just as easy as deleting it the regular way. I wipe everything on that HDD that way. If anyone goes digging through the deleted files on my drive looking for something to steal or something potentially incriminating, they're going to be wasting a lot of time going through Gigabytes of old memes, random screenshots of payment confirmations, and dumb projects that were deleted the exact same way as any of my old personal or financial info.
@yeahgirl11
@yeahgirl11 2 жыл бұрын
@@barms9768 Thank you so much for answering. I really appreciate it. Lmao whenever someone brings up a governmental agency and how trustworthy their "security" is, i can't help but laugh because I was in the military and know for a fact that they really do get lowest bidder shit, even in their security. It's pretty funny how shitty the government is at its opsec.
@stevengill1736
@stevengill1736 2 жыл бұрын
Spinning rust. ;*[}
@CarlosTrejo2309
@CarlosTrejo2309 2 жыл бұрын
5:26 it’s actually possible, just really hard. That’s why it’s recommend it to do multiple runs I my memory doesn’t fail me, I reading that you could read the voltage of those sectors and deduce what information was there before. So for example, let’s say that you want to delete this information: 10011010. Overwriting will result to: 00000000, but looking at the voltage you could figúrate out the original message. So the way it works, the computer reads the current flow and if the voltage is less that maybe 3V it will read as 0, and if it’s between 3 and 5V it will read as 1. (Again, I’m just remembering for what I read a long time ago and the numbers might be different). So, reading the voltage you could get something like 2.5V, 1V, .9V, 2V, 1.9V, 0V, 2.7V, 1.2V. And effectively recovering the original message to 10011010
@gayusschwulius8490
@gayusschwulius8490 2 жыл бұрын
Not voltage, but capacitance, but you are still correct. Therefore, overwriting it with random data, THEN overwriting it with zeroes is much safer.
@NICONINE
@NICONINE 4 жыл бұрын
the thumbnail...is just 👌
@AVI80R907
@AVI80R907 2 жыл бұрын
I don't even need to delete files. I just watched because the thumbnail matched the title so perfectly 👏
@lordjellyfish4745
@lordjellyfish4745 4 жыл бұрын
Mental's profile pic isn't a cat with 4 diffent eyes, its corrupted and it lost some colour info
@johnnycochicken
@johnnycochicken 4 жыл бұрын
good one!
@SlideRSB
@SlideRSB 4 жыл бұрын
I noticed your screen shot of Recuva for recovering files on Windows. What's the best tool to use on Linux? I'd like to test it on some deleted emails.
@xramejin
@xramejin 4 жыл бұрын
TestDisk and PhotoRec are really good. You can get them on literally any platfom too.
@jdsalazar8327
@jdsalazar8327 2 жыл бұрын
Just a random video showed up and click it so fast because its interesting. Thank you for this
@ANDELE3025
@ANDELE3025 3 жыл бұрын
Alternatively, open file in any hex, binary or even notepad, replace everything with 01010101, save and then delete.
@victorpleyosa4386
@victorpleyosa4386 2 жыл бұрын
"we do a little trolling"....
@rafa.5610
@rafa.5610 3 жыл бұрын
In windows you can use the cipher comand to overwrite deleted data
@m4rt_
@m4rt_ 3 жыл бұрын
just do as in MrRobot back up the necacary files, put the chips in the mircowave and drill the hdd then get new ones and put the backup on that
@kennethng8346
@kennethng8346 2 жыл бұрын
As a Unix geek I do the following: "dd if=/dev/urandom of=stuffing", it fills the disk with random stuff. Not fool proof, some stuff may remain, but it should get most stuff. Oh yes, be sure to delete the directory entry itself as some stuff lives there (especially windows short files)
@stewartzayat7526
@stewartzayat7526 4 жыл бұрын
Couldn't you also replace each byte in the file with a null byte (thus invalidating the data) and then deleting the file? I guess the metadata would still be recoverable, but that's a minor thing.
@bitw1se
@bitw1se 3 жыл бұрын
Not different from deleting the file first and then writing zeros to it.
@stewartzayat7526
@stewartzayat7526 3 жыл бұрын
@@bitw1se sure, but it's much easier this way. Just a few lines of code.
@bitw1se
@bitw1se 3 жыл бұрын
@@stewartzayat7526 That is true, but writing to the file every time you delete it is just not viable. Will increase wear on SSDs especially a lot
@stewartzayat7526
@stewartzayat7526 3 жыл бұрын
@@bitw1se deleting the file first and then writing zeros to it has that same issue as well though. Also, it depends how often you have to securely delete something. If it's just one time, I don't think it will be too big of a deal.
@bitw1se
@bitw1se 3 жыл бұрын
@@stewartzayat7526 That is true. Exactly what I meant, for the average user deleting a file like this will just wear out their SSD in months, depending on the size of the SSD. So, „forgetting“ the file is probably the best solution. But yes, removing a file like you described every now and then won’t hurt.
@techtiger2558
@techtiger2558 4 жыл бұрын
1:18 top notch, also, amazing thumbnail
@Jertzukka
@Jertzukka 4 жыл бұрын
Overwriting the whole empty disk space isn't problem free, for me it has caused a lot of problems and system freezing. If you haven't moved the files and can assume that they're in their original physical location on the disk, you can just run bleachbit --shred on the files which overwrites them and deletes them.
@denisvozian4791
@denisvozian4791 3 жыл бұрын
Best thumbnail I’ve seen in awhile..
@Moon-wn5rm
@Moon-wn5rm 2 жыл бұрын
Hello sir, here is the most Based KZbinr award 🏅
@Calajese
@Calajese 4 жыл бұрын
If I were to ask more about some "plans" would the glow be too bright?
@sirzorg5728
@sirzorg5728 4 жыл бұрын
Yes.
@MandenTV
@MandenTV 4 жыл бұрын
Blinding.
@edge_of_theknife6315
@edge_of_theknife6315 3 жыл бұрын
my way of deleting a file is to change it to txt file then delete and write random stuff corrupting it in the process that being said it's a pain to do when trying to delete something that has many files so i just corrupt the main files and delete the rest normally
@donaldok.886
@donaldok.886 2 жыл бұрын
I'm a sys admin and love your vids.
@FranLMSP
@FranLMSP 4 жыл бұрын
Is the "random filling" better than "zero filling"? to prevent having to do multiple zero filling passes
@MentalOutlaw
@MentalOutlaw 4 жыл бұрын
pseudo random filling just gives the illusion that the drive was naturally overwritten with "random" data instead of the drive purposely being zeroed. But someone experienced in data forensics will still be able to identify a pseudo random overwrite, both options render data unrecoverable with 1 pass.
@andreybashkin9030
@andreybashkin9030 2 жыл бұрын
@@MentalOutlaw it doesn't. Micro-magnetometry works magic on such sloppily "erased" data. All zeroes, or single pass (pseudo-)random will only make it safe from infotech students. A Physics student in a lab with 100k budget and a bunch of free time will figure it out.
@DarkVeghetta
@DarkVeghetta 2 жыл бұрын
@@andreybashkin9030 Sure, but with that budget, it's probably easier to frame most ordinary people. If it costs 100k to recover my old memes and ex-gf. nudes, I feel rather safe.
@syudagye2837
@syudagye2837 4 жыл бұрын
I like your pointers mate
@InsaneFirebat
@InsaneFirebat 4 жыл бұрын
Never considered encryption when thinking on this topic.
@cowthedestroyer
@cowthedestroyer 2 жыл бұрын
If you dont want someone to have access to begin with encrypt the drive and if its not on your main drive use a different encryption key so you have a lower chance of leaking all your data of the password gets out or even better encrypt the drive then encrypt that files just make it as convoluted as possible and when it comes time to delete it remember the chances of data recovery via a couple lines of binary that they could hold against you has a small chance of recovering after rewriting the data is so small you might want to focus on your opsec first. Dont operate like they will do a no knock raid tomorrow operate like they are actively using a backdoor today.
@rajnish747
@rajnish747 3 жыл бұрын
You should have mentioned about testdisk and photorec. What about a separate video on file recovery using testdisk and photorec? :)
@anasseddafir4215
@anasseddafir4215 4 жыл бұрын
Pointers? That's just like C!
@BrandonBeanland
@BrandonBeanland 4 жыл бұрын
In a way, yes
@luigiramirez29
@luigiramirez29 2 жыл бұрын
I see you are a fellow info warrior. :)
@deViant14
@deViant14 2 жыл бұрын
Encrypt everything. If you're counting on wipes you're already doing something wrong.
@GooogleGoglee
@GooogleGoglee 4 жыл бұрын
Great video :)
@StrangeIndeed
@StrangeIndeed 4 жыл бұрын
love every second of it
@Mic_Glow
@Mic_Glow 2 жыл бұрын
... or just use a program to overwrite the whole hard drive. Depending how paranoid you are you can do multiple passes.. because after one pass it's STILL possible to recover the data, or at least part of it. The overwrite isn't perfect and the read head can pick up "in between" old lines using specialized software or by disassembling the HDD and examining the plates using custom hardware in a lab.
@bald_chicken
@bald_chicken 2 жыл бұрын
Ok your thumbnail is great
@jbruell94
@jbruell94 4 жыл бұрын
I fucking love your videos. You're the man.
@ciupanezubogdanel
@ciupanezubogdanel 2 жыл бұрын
Your video is great and all, but I personally preffer the Elliot Alderson method (from Mr. Robot) everytime i need to delete files :)
@tedbybolf4616
@tedbybolf4616 4 жыл бұрын
Shred is best for hdds but ssds are a little problematic but you can still shred them normally you will surely loose some lifetime of this hardware but if it is necessary I use shred even on ssds
@3rdgig
@3rdgig 4 жыл бұрын
why is that?
@tedbybolf4616
@tedbybolf4616 4 жыл бұрын
@@3rdgig sorry I don't understand how ssds work
@richterman3962
@richterman3962 2 жыл бұрын
Step 1, get a drill (drill press works too) Step 2, get ssd or hdd clamped on a table. And disable led Step 3, drill through the disk on hdd, if ssd, drill in every single chip
@bluemagic3800
@bluemagic3800 Жыл бұрын
Even if you drill through hdd it can still be recovered
@Saitaina
@Saitaina 3 жыл бұрын
So, funny story (to me), I knew you couldn't fully erase something soong as those bits were still there, so while writing a story I had a guy use a program that I didn't know until today actual existed, to over write what was deleted...and I though it was probably h9ing to sound stupidly to anyone with actual company knowledge. Guess logic sometimes makes up when you don't have the background.
@pineapplewarrior758
@pineapplewarrior758 4 жыл бұрын
There is also the cipher command on windows, overwriting empty discspace without having to wipe the whole plate. I'm not sure how safe it is though, maybe someone can clear me up?
@mccad00
@mccad00 2 жыл бұрын
if you wanted to delete a specific file, could you not just use a Hex editor to overwrite all of the contents of the file?
@karolus28
@karolus28 4 жыл бұрын
6:53 that caught me off guard
@MegaJoojee
@MegaJoojee 3 жыл бұрын
Is it possible just to make your hard drive full with copies of like games or photos from other deive and then just delete those?
@iselink
@iselink 3 жыл бұрын
if they have same size... dd if=/dev/sda1 of=/dev/sda2 dd if=/dev/random of=/dev/sda1
@mattwaters9008
@mattwaters9008 4 жыл бұрын
the only way to really securely delete files is incineration. This i heard from a professional security person. You could overwrite a bunch of times I guess but you need to really know your os and the memory systems it uses. Pretty much you need to get to a forensics pro knowledge to even have a chance at being certain youre deleting every last remnant of every last bit. Or just incinerate your hardware.
@bertrahm3104
@bertrahm3104 2 жыл бұрын
Just an idea I’ve had: couldn’t you alternatively just write all 0s to the file and then delete it? Wouldn’t that have the same effect as running a program that zeros the file after deletion?
@atol71
@atol71 3 жыл бұрын
The system we are inside is like matroska doll most inner one is unopenable and TADAA there are doll layers above what you have opened. Ps. object in environment like hard disk is not actual disks or data storage object. They are REFERENCE to storage so destroying object doesn't destroy the data. Aaaand matroska doll layers....
@nrdfoss
@nrdfoss 2 жыл бұрын
lol the pointers slide made me laugh so hard for some reason
@Lainad27
@Lainad27 4 жыл бұрын
look im not an expert but isn't there an algorithm to increase ssd lifespan where, data moves between different parts of the ssd, and that should overwrite "deleted" files? I don't have any refrence, but I heard data moves through an ssd so that the data would be evenly distrobuted and no one location would have data for too long. shouldn't that overwrite other files after some time?
@_thresh_
@_thresh_ 9 ай бұрын
That hard drive at the beginning was open, you unfortunately lost access to all those dank memes on it because they are nearly impossible to close and still have them working
@nofun.8376
@nofun.8376 3 жыл бұрын
5:22 then why do they add these if they're achieve the same goal?
@YannMetalhead
@YannMetalhead 3 жыл бұрын
Good video.
@yuvalne
@yuvalne 2 жыл бұрын
One write is not enough. Through very sophisticated techniques (not hacker-level techniques but government-level techniques) even after a full pass data can be recovered. Which is exactly why a single pass and even 35 isn't considered secure for most militaries and governments of the world. If the government encrypts the disk and then shreds it when it's done with, then so should you.
@RB-mm7ce
@RB-mm7ce 4 жыл бұрын
I think my IT teacher said that overwriting a file one time might still leave room for recovering the original data from a magnetic disk. Bullshit or no?
@szymoniak75
@szymoniak75 4 жыл бұрын
Yes, it's true
@BrandonBeanland
@BrandonBeanland 4 жыл бұрын
If you overwrite the same sectors, its pretty much gone, assuming all its sectors were overwritten. But if it just saves to a new place on the actual device, it possibly can be recovered
@MechanicalMooCow
@MechanicalMooCow 3 жыл бұрын
It's so insanely difficult to do that only glowies would ever have the know-how or the spasticity to even try it, but yes, you can use the magnetism of the drive platter to try and recover data, even if it has been wiped with one of these tools. It's like leaving skidmarks of magnetism on your hard drive. You're not important enough for them to do that though, don't worry.
@yeahgirl11
@yeahgirl11 2 жыл бұрын
@@MechanicalMooCow Nah, if we weren't important enough for them to track and sell and buy our data, then governments and companies wouldn't be doing it. We are ALL important enough for them.
@kekistanifreedomfighter4197
@kekistanifreedomfighter4197 4 жыл бұрын
thumbnail game is on point.
@ibanez7736
@ibanez7736 2 жыл бұрын
What did he mean by the TRIM function not being completely infallible? Has there been cases where people have successfully recovered deleted files after the TRIM function was executed?
@windowsxseven
@windowsxseven 4 жыл бұрын
welcome to the bioluminescent watchlist guys
@ladyViviaen
@ladyViviaen 4 жыл бұрын
glowie moment
@simongray3314
@simongray3314 2 жыл бұрын
Him: How to delete your files? Me: Just hire Hillary Clinton.
@Eggsr2bcrushed
@Eggsr2bcrushed 4 жыл бұрын
shred -vuzn2 filename
@3rdgig
@3rdgig 4 жыл бұрын
based
@octavylon9008
@octavylon9008 4 жыл бұрын
why not just shred -vuz file ?
@randomgaminginfullhd7347
@randomgaminginfullhd7347 3 жыл бұрын
Can you do that on Windows 10 Home Edition too?
@bracerkum69420
@bracerkum69420 3 жыл бұрын
@@randomgaminginfullhd7347 you gotta rub a magnet on the hdd as well, your strongest magnet to be exact
@jacobhinchliffe6659
@jacobhinchliffe6659 3 жыл бұрын
@@randomgaminginfullhd7347 maybe if you find a precompiled binaey
@gr0wnup5
@gr0wnup5 3 жыл бұрын
I use 'iShredder' from ProtectStar for HDD
@seg-v6139
@seg-v6139 2 жыл бұрын
(I use linux btw) does rm(1) delete the file data or just the pointer?
@deltaoscaruniform1316
@deltaoscaruniform1316 4 жыл бұрын
Is there a way to recover NEF files from my FAT32 SD 4GB card? I accidentally deleted a nice photo from my Nikon D80 and partition guru couldn't recover it. I can send you the pic if you help me out.
@GooogleGoglee
@GooogleGoglee 4 жыл бұрын
If in the meantime you used the SD card it is practically impossible to recover it.
@deltaoscaruniform1316
@deltaoscaruniform1316 4 жыл бұрын
@@GooogleGoglee I think I stopped using that card after losing that file. The SD card got missing again but hope is hope.
@LivingTheDream77
@LivingTheDream77 4 жыл бұрын
Why use fat32 ? Use gpt and ntfs
@deltaoscaruniform1316
@deltaoscaruniform1316 4 жыл бұрын
@@LivingTheDream77 I don't think a 12 year old CCD DSLR would support that.
@LivingTheDream77
@LivingTheDream77 4 жыл бұрын
Delta Oscar Uniform it might tho
@arrtemfly
@arrtemfly 4 жыл бұрын
cat /dev/urandom > file/for/deletion && rm -f file/for/deletion i think this way is nice for hdds
@Camelotsmoon
@Camelotsmoon 2 жыл бұрын
3:11 Looks like something out of a creepypasta 😂
@abasba00
@abasba00 4 жыл бұрын
the chad we need need but don't deserve
@windowsxseven
@windowsxseven 4 жыл бұрын
why'd you type need twice
@polygondeath2361
@polygondeath2361 3 жыл бұрын
If you want to truly destroy the file in seconds, smash the hard drive with a hammer
@andreybashkin9030
@andreybashkin9030 2 жыл бұрын
DISLIKE for misinformation: 5:20: "No need to overwrite multiple times, you only need to do it once" - this is misinformation (hopefully due to lack of knowledge of the subject, not intentional). If anybody want to know more, look up micro-magnetometry and its application to data recovery. In any corporate environment you can't assume that HDD data overwritten just once, especially with non-random patterns (such as all zeroes) is safely erased. It's simply not. It is still recoverable.
@mr.hitchens
@mr.hitchens 2 жыл бұрын
Nope...... once is enough. SSD you have to contend with wear leveling and HDD you have to contend with inaccurate heads. Just encrypt the whole drive from new and nuke the keys if you need to clean up. You cannot clean ANY OS because they put crap everywhere! If your going to go somewhere dangerous due to rouge despots, sketchy files etc use a live CD. Can't be written to. Tails is pretty good. But, with backdoored chips and servers, echelon, carnivore, prism etc etc its almost pointless. Veracrypt is a good otf. Alphabet actors still consider melted drives unsafe. They degauss the moment metal and its locked up for 6 years! True Story!
@andreybashkin9030
@andreybashkin9030 2 жыл бұрын
@@mr.hitchens 😂👍
@RedFenceAnime
@RedFenceAnime 4 жыл бұрын
Careful with the spice man you might an hero with two pew-pews in the back of your head.
@HonieFlakes
@HonieFlakes 3 жыл бұрын
I lost so much recently and I been trying to recover them it's hard can you do one on recovery of deleted or corrupt files or not really possible
@jayanspaliwal5907
@jayanspaliwal5907 2 жыл бұрын
1:01 I almost died laughing 🤣🤣
@cubicinfinity2
@cubicinfinity2 2 жыл бұрын
I windows, press Shift+Delete to skip the recycle bin and go to "permanent deletion". I do this a lot, but it also backfires when I'm not being careful...
@servicestuffs2549
@servicestuffs2549 3 жыл бұрын
Love the thumbnail 🤣
@danielveizaga6675
@danielveizaga6675 3 жыл бұрын
That thumbnail did her dirty
@hul8376
@hul8376 2 жыл бұрын
I use sledgehammer works 100% of the time
@madkvideo
@madkvideo 2 жыл бұрын
In linux i use sudo shred -vn 1 /dev/(drive) v is for verbose, so we can see the process. n 1 is the number of times it does the job. One is enough.
@ausore9832
@ausore9832 2 жыл бұрын
for me personally i right click on the thing i want to delete in dolphin and press "delete"
@muttsmuttt
@muttsmuttt 2 жыл бұрын
i was taught that the only true means of deleting data on a hard drive (this was before SSDs even existed commercially), was to take a hammer to it.
@Comeatm3br0
@Comeatm3br0 2 жыл бұрын
I prefer the old throw into the canal.
@umka7536
@umka7536 4 жыл бұрын
Use full disk encryption.
@alltheframes9015
@alltheframes9015 2 жыл бұрын
I see every prison having BleachBit in their computers. Something isn't just simply "deleted in a clerical error".
@CyberAnalyzer
@CyberAnalyzer 3 жыл бұрын
Your name is Martin?
@bettercalldelta
@bettercalldelta Жыл бұрын
I wonder if you could just fill the file with zeroes before deleting, that way all that anyone is gonna be able to find is \x00\x00\x00\x00\x00...\x00 instead of the original file
@michakrzyzanowski8554
@michakrzyzanowski8554 2 жыл бұрын
DBaN works fine. Slow, but secure
@HazyJ28
@HazyJ28 2 жыл бұрын
I use the DoD 7 pass standard via Active KillDisk
@happyfeet4506
@happyfeet4506 2 жыл бұрын
Ask hillary Brilliant 🤣😂🤣😂👍
@rockymtns99
@rockymtns99 2 жыл бұрын
My comment disappeared...Maybe it was HRC... in Linux use shred -vzu for sensitive deletes and rm for others.
@HazyJ28
@HazyJ28 2 жыл бұрын
Pointers=Table of Contents/Index
@MyReviews_karkan
@MyReviews_karkan 4 жыл бұрын
Dude, that fucking thumbnail. Holy shit!! 😂😂😂😂
@KonScript
@KonScript 3 жыл бұрын
Wait So that Means my OLD MINECRAFT WORLD CAN STILL BE RESTORED!
@SethAurelius94
@SethAurelius94 3 жыл бұрын
I just clicked because I thought we'd be memeing on hillary.
@DarkVeghetta
@DarkVeghetta 2 жыл бұрын
If you REALLY want to murder your data, just open up the HDD with a screwdriver and take out the physical disks, break each a few times with a pair of pliers, and dispose of them in multiple bins around your town/city. Once the trash gets collected, literally no one will ever see your data again. Ofc, if you have access to a roaring fire, that works even better (but, you know, can be a fire hazard). Presumably microwaves should work as well, but I'd rather not risk damaging my trusty microwave. That said, once you chuck the HDD into a bin, unless someone's regularly rifling through your trash, it's probably gone forever.
@ishanksharma9051
@ishanksharma9051 4 жыл бұрын
Based
@turbofiero86
@turbofiero86 3 жыл бұрын
use sdelete... i made an installer that adds to the right click menu
@unicorn_tamer
@unicorn_tamer 2 жыл бұрын
I remember once I did something stupid and I deleted everything in my hard drvive and it took me about two full days to recover most of my files from the command line.
@Arendium
@Arendium 4 жыл бұрын
Why don't you use lbry tho?
@MechanicalMooCow
@MechanicalMooCow 3 жыл бұрын
Glowbry
@SpriteXP404
@SpriteXP404 2 жыл бұрын
What if I use permanently "delete files" in windows 10?
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