At that point chewing on it might be your best bet
Blue_Morpho@lemmy.world 4 days ago
As long as the silicon got snapped and not just the softer plastic around the silicon.
If it’s actually important data that a nation state would want, most of the data could still be read off with an electro microscope.
Kowowow@lemmy.ca 4 days ago
HelixDab2@lemm.ee 4 days ago
Blue_Morpho@lemmy.world 3 days ago
That’s a consumer data recovery company. They aren’t going to use an electron microscope like a nation state, university, or dedicated emulation hacker.
pentestpartners.com/…/how-to-read-from-an-eeprom/
HelixDab2@lemm.ee 3 days ago
The first two links that you posted don’t appear to cover electron microscopy at all. The last appears to show a potential method of attack–which is noted in the link that I posted–but does not seem to show that it’s actually been successfully implemented. (“Using SEM operator-free acquisition and standard image processing technique we demonstrate the possible [emphasis added] automating of such technique over a full memory. […] The technique is a first step [emphasis added] for reverse engineering secure embedded systems.”)
Blue_Morpho@lemmy.world 3 days ago
Sorry the first link was wrong but the second link showed was a research paper showed them doing it.
Just google electron microscope eeprom and you will find hundreds of documents on the procedure. The second link I provided wasn’t theoretical. It showed it actually being done.
researchgate.net/…/312551555_Reverse_engineering_… “All those parameters allowed us to obtain clear differences between ‘0’ and ‘1’ states as seen in Figure 4. It has to be noted that this image is obtained without additional image processing to highlight differences between ‘0’ and ‘1’ states.”
"demonstrate the possible [emphasis added] automating "
It doesn’t say it isn’t possible but that they have a possible way of AUTOMATING it. That is instead of someone looking at the image and reading off the bits into bytes, they could take the image output the data without human intervention.
FiskFisk33@startrek.website 4 days ago
This article is focused on reading them electrically.
I too have heard you can read flash storage with electron microscopes.
IDKWhatUsernametoPutHereLolol@lemmy.dbzer0.com 4 days ago
So what you’re saying is that, its recoverable, just not by the average data recovery company.
asudox@lemmy.asudox.dev 4 days ago
Your best bet would be probably to shred the card with multiple iterations and then break the card physically.
GreatBlue@infosec.pub 3 days ago
Shredding might not work the way you expect on a SD card.
The memory cells in a SD Card can only handle a limited amount of write operations. A SD card typically has more cells than needed, so the controller can switch through different cells to improve the overall lifetime of the card. Which means you can’t be sure which cells gets rewritten when shredding, so the data you want to be gone, could still be readable.
If you want to secure your data, use strong encryption. Because what you gonna do, if you can’t destroy or get rid of the SD card?
Glory_of_Fire@lemmy.world 1 day ago
So I probably shouldn’t store my MacOS time machine backups on a 250GB microSD card? (It was the only practical thing I had when I started it and I never got around to changing it)
admin@sh.itjust.works 3 days ago
So that’s why I recovered 4GB of pictures out of a 1GB card from my dad’s camera huh? TIL
Worx@lemmynsfw.com 4 days ago
I was going to say burn it too.
eodur@lemmy.world 4 days ago
And if you really want to burn it good look into getting/making thermite.
Blue_Morpho@lemmy.world 4 days ago
Yes