This looks like it would make an excellent spying tool, if there isn't already a... | Hacker News

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		zalzane on June 29, 2013 \| parent \| context \| favorite \| on: Wi-Vi: See Through Walls with Wi-Fi Signals This looks like it would make an excellent spying tool, if there isn't already a similar device available.

zw123456 on June 29, 2013 [–]

Great, now the NSA not only can snoop on my emails but use my wifi hotspot to watch me too.

Spooky23 on June 30, 2013 | [–]

Given that secure buildings typically lack windows or have RF shielding on the windows, I'm sure this sort of capability has been around for a long time.

Example: https://www.astic.com/sdfilms.php

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