ハードディスクの音によるハッキング

下記の記事が出ている。

　Sounds from your hard disk drive can even be used to steal a PC's data
　CIO: August 12, 2016
　http://www.cio.com/article/3107206/sounds-from-your-hard-disk-drive-can-even-be-used-to-steal-a-pcs-data.html

　Your hard drive's sounds could help hackers crack your system
　engadget: August 12, 2016
　https://www.engadget.com/2016/08/12/hard-drive-sound-hack/

　How to avoid hacking? Read this story, then turn off your computer
　Phys.org: August 8, 2016
　http://phys.org/news/2016-08-hacking-story.html