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LifeSunDeath posted:They weight of my hand on the mouse is a dead-man switch. If my hand lifts off the mouse, a contraption of servos and power drills automatically destroy my HD's. Take that fedz.
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Mar 10, 2020 14:52
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Ornamental Dingbat posted:The venn diagram of scientists/technicians and people willing to examine evidence from crime scenes produces a really odd group of personalities. The venn diagram of scientists/technicians willing to examine evidence from crime scenes and scientists/technicians unwilling to work if they can't do funny voices is a perfect circle.
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Mar 10, 2020 14:52
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Mar 10, 2020 14:54
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Imagined posted:As far as I know unless the freaking NSA is after you, anything more than overwriting your drive three times is probably overkill and any vulnerability beyond that point is speculative and theoretical. Nobody's been able to demonstrate pulling data off a platter that's been overwritten even once. https://www.nber.org/sys-admin/overwritten-data-gutmann.html Ugly In The Morning posted:I went nuts on a drive that had copies of my SF86 on it after seven years, but that was mostly just because I wanted an excuse to go nuts on a hard drive and “it has an obscene amount of personal information on there” was a perfect for that. And China hacked the OPM and got all that data anyway.
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Mar 10, 2020 14:56
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Phanatic posted:] I keep getting phone calls from a spoofed OPIM number that leaves me voicemails in Chinese. I hope that’s all they end up doing with my info.
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Mar 10, 2020 14:59
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Phanatic posted:Nobody's been able to demonstrate pulling data off a platter that's been overwritten even once. All of my data (anime) is first encoded using a random number generator based on my farts (fart-wave number generator), from which a one time pad is created. More farts and a lighter are used to burn the one time pad. It would take crypto scientists 1 billion years of farts to decode my system.
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Mar 10, 2020 15:05
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Before he died, Terry Pratchett asked that his hard drives be taken out and crushed with a steamroller, and so they were.SniperWoreConverse posted:in the old days the cops would always throw that poo poo in the slag furnace. Throw confiscated weed and other poo poo they couldn't sell or smoke themselves, too. Industry really is on a decline. That exhaust vent must have been a real popular hangout spot haveblue fucked around with this message at 15:29 on Mar 10, 2020 |
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Mar 10, 2020 15:23
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Imagined posted:As far as I know unless the freaking NSA is after you, anything more than overwriting your drive three times is probably overkill and any vulnerability beyond that point is speculative and theoretical. Overwriting isn't all that useful on newer storage media (i.e. SSDs) If you want to erase something, use blkdiscard --secure, which will cause the device to nuke everything. If it doesn't support that, blkdiscard --zeroout will zero-fill everything. If that's not paranoid enough, physical destruction is the only option. We have a degausser for mass destruction, which is much more appropriate for a university than a hammer. (Though we also have hydraulic presses capable of 600 MPa from all sides and temperatures of 600°C)
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Mar 10, 2020 15:26
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Information that you really, really never want to find useful.
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Mar 10, 2020 15:29
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Antigravitas posted:Overwriting isn't all that useful on newer storage media (i.e. SSDs) Or just encrypt the filesystem and drop the key.
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Mar 10, 2020 15:34
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That's what blkdiscard does, and is the only way to delete from an SSD thanks to wear leveling. Pending OSHA: my work got a ping-pong table. We put it on the mezzanine, with a thin chain stopping all the retarded fat developers (myself included) from plummeting 15 feet to the concrete floor below. For some reason we are incapable of chasing a runaway ball without looking like Peter Griffin.
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Mar 10, 2020 15:41
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Antigravitas posted:If that's not paranoid enough, physical destruction is the only option. We have a degausser for mass destruction, which is much more appropriate for a university than a hammer. Degaussing's not so great for SSDs either. https://www.usenix.org/legacy/event/fast11/tech/full_papers/Wei.pdf quote:We also evaluated degaussing as a method for erasing SSDs. Degaussing is a fast, effective means of destroying hard drives, since it removes the disks low-level formatting (along with all the data) and damages the drive motor. The mechanism flash memories use to store data is not magnetism-based, so we did not expect the degausser to erase the flash cells directly. However, the strong alternating magnetic fields that the degausser produces will induce powerful eddy currents in chip’s metal layers. These currents may damage the chips, leaving them unreadable. We degaussed individual flash chips written with our fingerprint rather than entire SSDs. We used seven chips (marked with † in Table 5) that covered SLC, MLC and TLC (triple-level cell) devices across a range of process generation feature sizes. The degausser was a Security, Inc. HD-3D hard drive degausser that has been evaluated for the NSA and can thoroughly sanitize modern hard drives. It degaussed the chips by applying a rotating 14,000 gauss field co-planar to the chips and an 8,000 gauss perpendicular alternating field. In all cases, the data remained intact.
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Mar 10, 2020 15:41
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Platystemon posted:What about the bogeyman with the magnetic force microscope and time to use it? What about Magneto? 
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Mar 10, 2020 16:11
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haveblue posted:Before he died, Terry Pratchett asked that his hard drives be taken out and crushed with a steamroller, and so they were. nah like a steel mill molten metal furnace.
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Mar 10, 2020 16:19
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Phanatic posted:Degaussing's not so great for SSDs either. Well crap, the press it is then. We are currently building a new building with reinforced walls for even stronger presses, that should take care of everything.
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Mar 10, 2020 17:23
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Antigravitas posted:Well crap, the press it is then. We are currently building a new building with reinforced walls for even stronger presses, that should take care of everything. When I worked in Gaming the IT guys would always give me the Hard Drives to 'dispose of' simply because I took such enjoyment from dropping them from the top of the 6 story parking garage and smashing them against the concrete walls. But yeah a good hydraulic press probably works just as well.
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Mar 10, 2020 17:25
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A microwave is the technique I picked up from 90s hacker characters. Surprisingly effective on almost all computer components with very little work, but y'all go ahead and find a degausser.
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Mar 10, 2020 17:44
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Antigravitas posted:Well crap, the press it is then. We are currently building a new building with reinforced walls for even stronger presses, that should take care of everything. Welcome to hoodraulic press channel, today we are going to do SSDs *SSD explodes* what the gently caress
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Mar 10, 2020 17:48
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DandyLion posted:When I worked in Gaming the IT guys would always give me the Hard Drives to 'dispose of' simply because I took such enjoyment from dropping them from the top of the 6 story parking garage and smashing them against the concrete walls. But yeah a good hydraulic press probably works just as well. Thinking more about it, I could also submerge them in liquid nitrogen. I have a tank outside my office and a few more within walking distance. That should make the drives extremely brittle so they might actually shatter on impact.
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Mar 10, 2020 17:49
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Has anyone tried thermite?
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Mar 10, 2020 17:54
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Yes, it's like a lava lamp.
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They're ssds and this is the OSHA thread. Take off as much packaging you can and dunk it in HF.
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Mar 10, 2020 17:56
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PittTheElder posted:Has anyone tried thermite? Yeah: https://www.youtube.com/watch?v=-bpX8YvNg6Y&t=800s
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Mar 10, 2020 18:01
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Pretty much all secure document destruction outfits will also dispose of HDDs/SSDs (They use those big industrial shredders). IMO anyone still doing it in-house I guess doesn't give a gently caress about doing it right (Or at least getting indemnity by signing away responsibility to a third-party).
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Mar 10, 2020 18:02
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Relevant to the HD destruction, someone tries several methods. https://www.youtube.com/watch?v=-bpX8YvNg6Y
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Mar 10, 2020 18:06
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Pile Of Garbage posted:(Or at least getting indemnity by signing away responsibility to a third-party). This is the most important part right here, just get the certificate of destruction so you have proof that it is no longer your fault when the disks end up on ebay 
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Mar 10, 2020 18:12
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Micr0chiP posted:Relevant to the HD destruction, someone tries several methods. This loving rules
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Mar 10, 2020 18:23
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Those same outfits also do secure disposal of backup tapes which you pretty much need someone else to do if you're doing a significant upgrade of your tape backup infra. Migrating from one version of LTO tapes to whatever newer version can involve cycling-out hundreds and hundreds of tapes, many of which you've got stashed off-site at an outfit like Iron Mountain. Just lmao at attempting to do disposal of these in-house.
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Mar 10, 2020 18:25
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BMan posted:Welcome to hoodraulic press channel, today we are going to do SSDs https://www.youtube.com/watch?v=FrbQqh0rBIo
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Mar 10, 2020 18:35
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LifeSunDeath posted:This loving rules It was even better than when Rexxed posted it two posts earlier. (Really the takeaway here is that YouTube sucks for causing the demise of the YouTube Title Adder extension) VV you know what you did SyNack Sassimov fucked around with this message at 19:24 on Mar 10, 2020 |
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Mar 10, 2020 19:13
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Mar 10, 2020 19:14
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https://i.imgur.com/XGzutuP.mp4
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Mar 10, 2020 19:14
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Ornamental Dingbat posted:Did you know that a lot of criminal investigative science is about to start grinding to a halt if we don't find a reliable source of helium? Yeah that's just fearmongering. They found more helium a while ago. Worst case scenario is it gets more expensive, we're still really, really far away from running out.
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Mar 10, 2020 19:31
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I have all of the helium and have hidden it, I will do infinite crimes
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Mar 10, 2020 19:31
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Babe Magnet posted:I have all of the helium and have hidden it, I will do infinite crimes I feel you're being deliberately light on the details with this one....
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Mar 10, 2020 19:34
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Really it's better to say we're running out of cheap helium. You can extract it from the atmosphere just fine, the process as it exists right now though is just incredibly expensive and energy intensive.
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Mar 10, 2020 19:41
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My side gig is at a dentist and they're seriously wondering where they can get more facemasks if/when we run out because of idiots preppers hording them even though it almost certainly won't help because a) the nature of coronavirus and b) how most untrained people don't even use them correctly.
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Mar 10, 2020 19:53
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Imagined posted:My side gig is at a dentist and they're seriously wondering where they can get more facemasks if/when we run out because of idiots preppers hording them even though it almost certainly won't help because a) the nature of coronavirus and b) how most untrained people don't even use them correctly. Don't need training to know how to keep your beef jerky in there so you can have a little snack while you work. That's just basic Hulk Hogan protocol.
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Mar 10, 2020 20:20
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I hope that was in kph. jeez
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Mar 10, 2020 20:28
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lmfao of all the vendors to back into our lightpole hard enough to knock it down, it had to be the welding gas truck.
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Mar 10, 2020 20:31
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Helium talk always takes me back to when me and one other guy in our lab used ~30,000 liquid liters of it in one year. I worked it out to be about a percent of world production that year.
Source4Leko fucked around with this message at 20:43 on Mar 10, 2020 |
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Mar 10, 2020 20:39
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