What's the best way to erase hdd data? Are magnets a meme

>>57005389
Is that fucking real

From one anonymous (and not a NSA agent) to another anonymous you should just use the windows default formatter and everything will be okay.
Oh, and remember to use bitlocker for your encryption needs which has no back doors

>>57005389
thermite or other thorough physical damage

>>57005446
This. If the disks are in a million pieces then you won't be recovering that data.

>>57005389
Fill with zeroes, one pass is enough.

If you're completely paranoid like those conspiracyfags on /x/ and /pol/, you can drill a hole on the disk if you're not gonna use it again.

>>57005389
>What's the best way to erase hdd data?

Full-volume encryption with an absurd decryption key, reformat, encrypt again with a different key, reformat again. That should be a thorough enough scrub.

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>>57005489
>one pass is enough

>>57005389
this is fake right

>>57005546
It is

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>>57005546
>he thinks more than one pass will make a difference

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>>57005551
>>57005559
t. NSA

>>57005389

>NBC in charge of hyperbole

>>57005548

no, that's how desperate the mainstream media is to call the God-Emperor a liar

>>57005489
one zero pass is not enough. One random pass is pretty good. Three passes (zero one random) is plenty.

http://dailycaller.com/2016/09/22/how-reddit-ruined-the-hillary-clinton-campaign/

>>57005389
>it's real
https://twitter.com/NBCNews/status/785299709342654465

>>57005577
https://www.vidarholen.net/~vidar/overwriting_hard_drive_data.pdf

>>57005599
what program do people use to do a pass

>>57005389

Fire. As soon as the iron particles in a HDD hits its curie temperature it loses magnetism.

>>57005389

Magnets are the best way, that's why the military standard indicates to use a degausser. Other methods such as wiping or encryption take too long and if the enemy keeps the encrypted medium for 50 or 100 years they'll be able to decrypt it with future tech.

>>57005646
holy shit

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>>57005646
TWEET THIS TO STEFAN RIGHT NOW !!

>>57005748
>>57005646
>>57005548
>>57005410
(((fact checkers)))

>>57005646
hah. at least there are many calling it out

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>>57005389
Use BleachBit.

>>57005389

if you want to use it again? DBAN.

for real safety? a big ol' hammer and some fire

>>57005792
>https://www.bleachbit.org/cloth-or-something
based dev

>>57005389

dd if=/dev/zero of=/dev/sdb #or whatever youre drive is called

>>57005446
This. Thermite is the way to go. Find some powdered aluminium and rust and light that shit up.

If that is not possible do the following in this order:

>Use a strong magnet over the drives for a few minutes
>Pry them open
>Take each this and scrub them with steel wool and some abrasive (drain cleaner or metal polish should work)
>Polish that shit good
>REALLY work it
>Finish off by cracking the disks

There. Even the NSA wont be able to read it.

If you are in a real hurry tough, just opening the HDD and runing keys and shit over the disks and breaking them should do.

>>57005546
It is, NIST itself has said this

Drives are so dense now that the previous theoretical electron microscope method of recovery is now 100% unfeasible

>>57005856
Yeahhhhh, no. I am still going to do some 2 or 3 passes.

I want to be sure.

>>57005389

wth is with all these threads asking how to erase data? there has been about 6 today

>>57005489
I understand the principal, but how do you actually do that?

>>57005650
DBAN

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>>57005792
>it's real
free as in
F R E E D O M
R
E
E
D
O
M

>>57005389
Magnets work, but how do you plan on erasing the magnets after they absorb the data?
Its not the 80s anymore, the fbi got wise to this sort of shit.

>>57005559
sauce pls anon

>>57005856
There are literally civilian stores that can recover a single pass wipe. And who knows what the government is capable of.

>>57006262
Bullshit.

There's literally prizes of several thousand dollars offered around the Internet for anyone who can recover a single pass overwrite.

None have been claimed.

Your civilian store only covers shit that has been 'deleted' by the OS but not actually written over.

>>57005489
>one pass is enough
top meme lad

>>57005389
short of a strong electromagnet no.
ever since the 90s hard drives have been shielded against magnetism.
nowadays individual platters are shielded. destroying the hard drive is the only sure way to get rid of the data.
researchers recently have been able to recover the very first bits of data written to hard drive that has started to fail and had gone through billions of read and write cycles.
its safe to assume governments have been able to do this for quite some time more reliably.
physically destroy data you want to get rid of.
that being said if it was on a "cloud" server you already fucked up and have lost your data to someone else.

>>57006371
>researchers recently have been able to recover the very first bits of data written to hard drive that has started to fail and had gone through billions of read and write cycles

Source.

>>57006182
kek

The best way to render a drive unreadable is to turn it into powder, e.g. with a bench grinder. Also note that SSD drives and flash drives pose special problems. Writing over them 100% can still leave data accessible to recovery. They should be physically pulverized, as described above.

>>57005548
Fake? Nigger, have you seen all of the shit they put on this man and how much of it is even remotely true?

>>57008270
Theres dozens of people on /g/ right now that would spazz out over you and tell you that drives are 1s or 0s with nothing inbetween and 1 pass with dban is more than enough to make data completely unrecoverable..
sad isnt it.

>>57005688
>curie temperature
that's 770C
blowtorch is inconsistent, unless you have always burning fireplace to throw hdd in

>>57005389
>app

this is insane, the media is saying Trump is wrong on a technicality when he is absolutely right in the spirit of what he is saying.

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>>57005389
My best way and maybe the fastest is to fully encrypt the drive with a long and random password and then simply format it :)

>>57005489
This.
Just delete + 1 overwrite. Show me a case where data has been recovered after that. I'll wait.

>>57009463
Then encrypt that, reformat it again.

>>57005389
>app called bleachbit

>app

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Queen Hillary lost my vote because of this pic

Voting Johnson now

>>57005389
>destroying evidence
Do you enjoy prolonging your jail time?

>>57005650

shred

shred -vfuz myfile
-v = verbose
-f = force
-u = unlink (remove file after shredding)
-z = zero (zero file and it's name to hide shredding)
By default, it does 3 (three) random passes. You can change that with -n x where x is the number of passes.

>>57009828
>it's
its

>>57009813
LET
IT
FUCKING
SETTLE
YOU
STUPID
WHORE

WHAT THE SHIT, WHY CAN AMERICANS NOT PULL A PROPER PINT.

>>57005792
>using serif fonts for websites

What the actual shit? (((American news sources))).
I will only read DANISH and SWISS NEWS from now on.

>>57005389
This is parody right?

There's never any difficulty in destroying data. It's about doing it quickly and effectively.
Also there's obviously the fun aspect.
https://youtu.be/-bpX8YvNg6Y

>>57009849
I don't even drink and I know this. Would not throw my vote at this alcoholism promoter.

The coercivity of modern hard disk media is orders of magnitude greater than you can overcome from any degaussing that isn't also strong enough to physically bend the disk assembly in two. You'd need superconductors. Usual magnets or electromagnets won't do shit.

X-rays might flip a bit, especially on dense NAND Flash.

>>57005489
This is 100% correct for hard disks. Be careful of reallocated sectors. Use ATA Secure Erase Enhanced to ask the firmware to wipe those.

Multiple pass techniques were for ST106 MFM/RLL disks (pre-IDE, probably before you were born).

NAND Flash cannot be securely zeroised.

Instead encrypt your media, hold the keys on EEPROM, NOR Flash, or fast-fade RAM (eg CPU-internal L3 cache) and wipe the keys.

>>57005856
Magnetic resonance force microscopy.
> Detection of the magnetic spin of a single electron was achieved in 2004
Unless your drives operate on quarks there is a way.

>>57009548
>just delete + 1 overwrite
>just delete
Confirmed for knowing literally nothing about computers
>>57006296
And who says that you're not paid for your silence? Thousands of dollars is like giving out candy. It's cheap and if it gets you something you really should simply do it.

>>57005389
>(((app))
REEEEEEEEEEEEE

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>>57005389
They do work, we just don't know how.

>>57008761

the media is manipulative and trying their hardest to make sure Hillary wins

>>57005577
Actual NSAfag here. I'm not trying to discourage you from doing more than one pass, but believe me, it won't stop us from getting your data out of your drive. We have tools that allow us to gather the entire history of the drive. It will only make it slightly harder to do so. If you didn't encrypt your drive in the first place, then you dun goofed.

I'm fairly sure Trump didn't literally mean that Hillary's tech team dumped the HDD's in acid

>>57005792
Did she actually say "like with a cloth or something" in an email?

>>57005756
Who?

>>57010467
>we have tools that let us get the entire history of the drive
At least try to make a little bit of effort when bullshitting, you're not on /b/. The NSA can't simply exceed the storage capacity of a drive like that.

>>57010486
Not an argument.

>>57010492
Heed my advice be on the safe side: encrypt your drives right off the bat. If you don't wanna believe me then fine, take your chances at your own risk.

>>57009813
You fucking reprobate, like

>>57005522
that's the most retatded thing I've ever heard

How.... how do they not know what a figure of speech is....

>>57010525
I'm not arguing against encryption. I'm calling you retarded.
Why heed the advice of someone proven to be stupid though? It's far wiser to consider your comment inconsequential.

>>57010583
They do. They're just politically bias and are misinterpreting because of that. American politics (like politics in most pseudo-democratic nations) is about swaying the options of stupid people. Saying someone is wrong is fairly effective in that.

>>57005389
Thanks for correcting the record OP

>>57010590
You just have to have the last word, haven't you?

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Will water do the trick?
I mean 10 days in bowl full of tap water.

>>57010655
No its just that you seemed to have a misunderstanding. I wanted to clear it up.
Ironically this is a very good reply to end it on.

>>57010667
No that's really ineffective/pointless. Maybe 10 days of electrolysis. Not sure water is the best choice for that. But maybe.

>>57005389
>She did not.
are they even trying?

>>57010474
No Trump probably literally believes that. He's pretty dumb in general it seems.

>>57010474
>Did she actually say "like with a cloth or something" in an email?
She said it during a hearing in front of the senate. One of them asked something along the lines of "Did you order someone to wipe your email servers?" and that's how she responded.

>>57010474
>>57010868
She meant it as an actual server (e.g. one you'd find at restaurant, that you've accidentally spilt something on) - she was trying to pull a joke.

poor hillary

:_;

>>57010667
Shit this game me an idea.
Water wont work. But PCB etchant will.
Just disassemble the disk and dump it in ferric chloride. Ain't noone recovering shit from that.

>>57005650

dd if=/dev/zero of=/dev/sdb bs=512; dd if=/dev/urandom of=/dev/sdb bs=512; dd if=/dev/zero of=/dev/sdb bs=512

If the drive has bad sectors and won't pass the above, crush in a press.

>>57005389
>>57005736

Any magnet that an anon can get their hands on will do nothing to the data in a drive.

I once used a tape eraser to try and blank floppies. it did nothing, and yes it was working;

The stuff the military developed after that plane got forced down in China is very specialized.

>>57005489
How can I set this on a button? Just a nice, easy script to nuke my PC and install Newbuntu.

>>57005410
Yep.

>>57011925
Just write a shell script

>>57009813
That fucking lady in line behind her.
>wtf is this bitch doing?

>>57010965
Over the last few months I've realized she actually might be a decent leader. She's at least shown she is a human and that she can acknowledge mistakes and attempt to correct them and she spends a lot of time trying to get her policies out there. I don't like her but I prefer her over the only other likely alternative. Trump is basically everything he accuses her of and more. He's a complete piece of crap.

>>57012141
hitler was a fantastic leader

>>57005410
Yeah, it is real.

https://twitter.com/NBCNews/status/785299709342654465

>>57012141
Thank you for Correcting the Record™.

>>57008761
It's funny, the point he was making was that she destroyed the data, not the method.

>>57012141
$0.50 has been added to your account

>>57005389
shred/DBAN + hitting it with a hammer.

dd if=/dev/urandom of=/dev/sdX should be good enough unless you're storing government documents

>>57012141
shoo shoo shill

read the wiki!

https://wiki.archlinux.org/index.php/Securely_wipe_disk

>>57005389
Bleach is a base, not an acid. If Trump does not understand basic high school chemistry, how will he defend the country against chemical attacks from ISIS?

>>57005435

> a NSA agent.
> a.
> not an.

Wew I guess we sheeple are safe after all if a complete idiot like you can be an NSA agent.

>>57005389
a degausser would do the job just fine. I have one at work I used for damaged drives to make sure there's as little recoverable data as possible.

What about ssd's, magnets doesn't work on then

Physically destroy the hard drive you retarded fuck. How is this even a thread?

>>57012528
>an national security agency agent
>an national
wew

>>57012528
N is not a vowel, dipshit.

>>57005435
Nice try, NSA.

The best way to remove data is by encrypting it with a really long password then deleting that

>>57013281
We can check the Windows keylog data and recover the keys you pressed to recover the password

>>57010513
Irrelevant.

>>57013298
But what if i use linux instead. Checkmate!

>>57010570
Why?

>>57012967
>>57012935

> En Es Ay
> En

Say it with me.. En.

Nice American education there.

Just send all of your old hard drives with private data on them to me, and I will make sure that they are securely destroyed. I can also securely store all of your private keys and passwords. All for a very reasonable fee.

Trust-Me Services

Use an ssd instead. They have a secure erase command that will clear the entire drive in a fraction of a second.

That or a single pass on an hdd, but that could take a while

>>57014331
Lol. "Retard or shill?"

>>57009463
this, and use keyfiles that are only stored on a cd, and then destroy the cd when you are done with the harddrive

>>57005389
Hammer and/or drill

nothing else is as easy or effective

>>57010292
See >>57005647

>>57005389
>app

>>57005410
I don't see what the big issue is, if that is true

>>57015382
It's just more proof how Trump is retarded and your post also shows you're just as stupid.

>>57012141
>She's at least shown she is a human and that she can acknowledge mistakes and attempt to correct them

show me

>>57015420

oh, I thought he had an issue with the NBC posting.

Of course everyone knows Trump is a crazed grandpa-child; At least he doesn't want WWIII though

>>57010467
>gather the entire history of the drive

If this is true, couldn't we have essentially limitless storage capacity on a hard drive by having time-split hard disk reads? Like, if you had a hard drive with a 1TB capacity, then you could separate the hard drive into n quantity, nanosecond disk time periods, where any disk reads you do are done off of a specific, recorded nanosecond of time, essentially giving you nTB of disk space in 1TB chunks, with a relatively short time period to switch the disk over to the time period's 1TB of space being used? Hell, you could even use an entire time section to define how much space is being used by the other time sections so you could potentially flip over to another time section's 1TB of space without completely setting the hard disk to that time period - just the used space.

Even if it was too slow to do that for home use, it seems like that would be amazing for data backup.

>>57010467
>We have tools that allow us to gather the entire history of the drive.

Fucking script kiddies

>>57010667

thank you for this cute Saya pic, anon.

>>57005389

dd if=/dev/urandom of=/dev/sda bs=4096

i know for a fact forensics-quality recovery labs cannot recover the data if the magnetic material is scraped off. Remove the platters and sand them.

>>57015420
Ok, bring it on with Hillary.

She just said that she wants to make the sky above our bases a no-fly zone.
I've been waiting to nuke you idiots my whole life. Lets see how fast these warheads fly, пиндoc eбyчий.

>>57005389
I bought some second-hand Macs from the local KPMG office. Their approach to data security was to put a single 3/8" hole through the entire disk drive; case, platter, electronics and all. I didn't bother to try data recovery.

Why is writing 0 over every spot in the hard drive more effective if you do it multiple times? Shouldn't it just be a 0'd out drive after one pass anyway?

>>57010431
Flux lines

>>57016561
Your nukes will be shot down before they even make it halfway across the ocean lol. Also, the Soviet Russian "just send more men to their deaths" tactic won't work this time, so good luck

>>57010292
>of a single electron

Good job!

Now try doing it for more electrons than there are stars in the known universe

That's probably less electrons than make up one hard drive platter

The very post you responded to explained why it's unfeasible

>>57017899
>more electrons than there are stars in the known universe
>That's probably less electrons than make up one hard drive platter
Get over yourself. Even if we have 1,000 TB drives (we don't), that's just 8x10^15 bits. Even if a bit needs 1,000 electrons (it doesn't) that's just 8x10^18 or roughly 10^19 bits.
That is still a few magnitudes less than there are probably stars in the observable universe.

>>57018197
>Even if a bit needs 1,000 electrons (it doesn't)
Try again. In 2012 the best drives had 1 million atoms per bit. We haven't advanced far past that to the tune of 1 million to 1000 reduction.

http://www.techradar.com/news/computing-components/storage/how-many-atoms-to-store-one-bit-of-data-1054434

>>57005845
>le magnet on HDD meme
run DBAN a few times first, THEN use magnets if you absolutely feel the need and everything else

>>57018233
Then do the math with more conservative numbers and it's still the same.
10^6 atoms per bit. Let's be generous and give them 50 electrons.
5x10^7 e/bit * 4 TB = 5x10^7 e/bit * 32x10^12 bit = 1.6 x 10^21 bit.

Or about 2x10^21 bit. Comes closer, but still less.

>>57018364
the end result should read e, not bit. But you get the point.

>>57018364
Why would a million atoms only have 50 electrons??

>>57018402
50 electrons each, obviously. Should be clear from the simple math. I'm not sure what materials are used for the platters. But even if it were 100 (I'm sure it's not because that element is radioactive) it would only be a factor of 2.

>>57018364
Still astronomically more than is remotely feasible, so you're the pedantic one here

>>57018543
Well, nobody wants to recover whole harddrives. But I do agree that recovering even a few KB is almost impossible. There already was a study linked >>57005647

But your estimate that it is a lot more than stars in the known universe was very wrong.

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>>57018684
also a table from the study.

>>57005457
>>57005845


https://www.youtube.com/watch?v=-bpX8YvNg6Y

Retards tbqh

>>57015420
Fucking idiot.
Trump didn't mean a literal acid bath.
And the point was that she maliciously deleted the emails, not what method she used.

NBC is pretending to be on the spectrum so it can play confirmation bias with it's buddies. Just like the "Mexicans are rapists" intentional misunderstanding.
Don't get me wrong, fuck trump, but this type of shit triggers me. Pretending to be retarded so that you can strawman someone and feel smart about it.
Jusy like how we all pretended to know what Aleppo was.

>>57005389
They are fact checking a figure of speech? Or are they so autistic they think he meant she actually tried to wash the servers with acid?

OP pic related is egregious, but politifact is actually solid and points out how often he lies.

>>57010667
Pressurized water would work. Layer by layer, the disk will disintegrate.

>>57019560
He's mentioned the acid wash thing before I think he actually believes it himself.