News for hackers. Stuff that matters.

A comment on Hearing your touch: A new acoustic side channel on smartphones. Parent comment

Re:Hearing your touch: A new acoustic side channel on smartp... by nine_k on Friday June 07, 2019 @04:34PM (#20128343)
The front camera has very little chance to register any finger motion on screen, though.

Adding accelerometer (tilt / shift) data could help a little bit, because it's correlated to the motion of typing hands, too.

[ Parent | on HN ]
Re:Hearing your touch: A new acoustic side channel on smartp... by JeremyBanks on Friday June 07, 2019 @04:41PM (#20128412)
It helps quite a bit. The relevant web APIs were retroactively rate-limitied to mitigate these risks.

https://bugs.chromium.org/p/chromium/issues/detail?id=421691

https://arxiv.org/abs/1410.7746

[ Parent | on HN ]
Re:Hearing your touch: A new acoustic side channel on smartp... by jasonhong on Friday June 07, 2019 @09:45PM (#20130096)
There were 3 research papers that came out around 2012 (almost simultaneously) that looked at using accelerometers to infer what people were typing.

Here is one of them, I don't recall the other two. https://dl.acm.org/citation.cfm?id=2162095

[ Parent | on HN ]
Re:Hearing your touch: A new acoustic side channel on smartp... by malka on Saturday June 08, 2019 @05:23AM (#20131467)
It could look at your eyes to infer wich key you are pressing
[ Parent | on HN ]