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A comment on Amazon Echo Dot does not wipe personal content after factory reset. Parent comment

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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