强力磁铁会让机械硬盘消磁吗 Will a Magnet Erase my PC's Hard Drive - Let's Find Out

https://www.youtube.com/watch?v=nWXDOAxqtuI
原视频底下的一条评论：Modern HDDs have magnetic domains on the platter that are too small and powerfully magnetized to affect with typical permanent magnets. If you are looking to destroy the data in a way such that it positively cannot be recovered, you need to physically destroy the platters. Thermite works well for this purpose, but just putting the drive in an oven that can exceed the curie point of the media will do quite the number on the magnetic domains on the disc (even if the drive remains otherwise intact). SSDs, being more-or-less immune to static magnetic fields, would require thermite to totally destroy.