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Comment Re:Infrared (Score 1) 146

I confess I didn't read the article closely and I assumed that they were using the laser mic like a regular laser mic.

However, the algorithms to pull keystrokes from an audio recording have been public since 2005, and have probably been used by government and bad guys for a lot longer than that.

According to that article, this can be done with a simple PC mic. For what it's worth, my basic experiments with DIY laser mics get almost as good of sound quality in the right conditions. It's not hard to imagine that somebody who actually understands optics and sound could get much better.

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