Re:80% of orgs that paid the ransom were hit again
by XorNot on Saturday June 19, 2021 @12:02AM
(#27557644)
This isn't why it didn't work though: disks tolerate smooth magnetic field gradients just fine. To wipe them you want a chaotic, noisy electromagnet.
Re:80% of orgs that paid the ransom were hit again
by exikyut on Saturday June 19, 2021 @03:41AM
(#27558603)
Wow, interesting. How does that work?!
Re:80% of orgs that paid the ransom were hit again
by XorNot on Saturday June 19, 2021 @05:12AM
(#27559040)
Basically it's the transition in field strength, not the field, which flips a bit. So you need a moving magnetic field, and you need to cause a lot of changes because HDDs have all sorts of error correction.
Open up a spinning rust hard drive and you will find two very strong magnets inside, positioned opposite each other.