Acoustic Cryptanalysis

Substantial discussion:

https://news.ycombinator.com/item?id=6927905 (tau.ac.il) (92 comments)

Other submissions:

https://news.ycombinator.com/item?id=6938536 (dailymail.co.uk)

https://news.ycombinator.com/item?id=6935289 (tau.ac.il)

https://news.ycombinator.com/item?id=6933255 (slashdot.org)

https://news.ycombinator.com/item?id=6932445 (slideshare.net)