Amazon Echo Dot does not wipe personal content after factory reset

Re:Amazon Echo Dot does not wipe personal content after fact... by rootw0rm on Saturday July 24, 2021 @11:52PM (#27946549)

I'm fairly certain you're correct, but the fact that various secure delete tools overwrite data multiple times probably helps propagate this myth.

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Re:Amazon Echo Dot does not wipe personal content after fact... by quaintdev on Sunday July 25, 2021 @02:12AM (#27947124)

I wonder how it is even possible in those 100MB disks.

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Re:Amazon Echo Dot does not wipe personal content after fact... by rebuilder on Sunday July 25, 2021 @05:24AM (#27947886)

The idea was that, since the drive head doesn’t pass over precisely the same area on the track every time it writes to the disk, the track has to be wide enough to account for this lack of precision. Thus, a single overwrite pass could leave a portion of the track’s edge unchanged and readable with an electron microscope or something.

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Re:Amazon Echo Dot does not wipe personal content after fact... by Doxin on Monday July 26, 2021 @05:16AM (#27957338)

I always figured that a write wouldn't change the magnetic field 100%. Say it's 90% effective at changing the magnetic field. There's now four options:

1 overwritten by 0: 10% field strength

0 overwritten by 0: 0% field strength

1 overwritten by 1: 100% field strength

0 overwritten by 1: 90% field strength

But I guess that's not quite true.

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Re:Amazon Echo Dot does not wipe personal content after fact... by pbhjpbhj on Sunday July 25, 2021 @06:56AM (#27948251)

I looked into back in the day (but not quite as far back as that), https://alicious.com/secure-drive-data-wiping/, couple of references there.

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Re:Amazon Echo Dot does not wipe personal content after fact... by thefurrysquid on Sunday July 25, 2021 @03:40AM (#27947485)

Low density data, paired with not very accurate head tracking.

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