4 Apr
2022
4 Apr
'22
9:06 a.m.
For those in the know, how much success - assuming a
"money is no object"
approach - do data recovery companies have in retrieving data from drives
that have a) been overwritten with zeros using dd or similar, and b) been
overwritten with random data via a more comprehensive tool?
cheers,
Jules
I am pretty sure someone had a bounty out there, they give you a hard
drive that had a phase on it that is stored linear on the platter. They
write over it once with zeros. If you can recover the phrase then you win
the bounty.
It's unclaimed.
Everyone talks about some theoretical ideas but no proof of it being done.
My understanding is once you erase the data it's difficult to tell the
difference between something recently erased and the noise floor. This was
last time I looked into this which was a while ago. Maybe nation state
has some ability but you or your customers data isn't worth the hassle.
Prior employer would just have hundreds/thousands of pounds of hard drives
ground up though. To eliminate any risk of data leakage. I am sure the
same is done with SSDs by other companies and the US Government.
Probably grinding up $9000 8TB SSDs all day.
--
: Ethan O'Toole