I don't believe magnets cause bit flips in NAND - they're tiny little capacitors. If you're able to induce enough current with the magnetic field to scramble t

I don't believe magnets cause bit flips in NAND - they're tiny little capacitors. If you're able to induce enough current with the magnetic field to scramble that, you've probably also induced enough current to fuse open an awful lot of important conductors elsewhere in the device. Which, of course, also accomplishes the goal, just without the "reuse" option.