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by stevarino
3426 days ago
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You make a lot of interesting points with frequency analysis, but these facts can be used for your benefit. For example, if you're concerned about transit systems being used to identify you, try leaving the devices in a safe location for several hours and have them respond on a timer system. Any analysis ran across millions of users will end up filtering you out, lowering your own suspicion factor and increasing the adversaries uncertainty when facing big data. How a system fails is just as important as how it performs when it comes to security, the young-adult novel Little Brother by Doctorow goes into this in good detail. |
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Ideally you would use an electronic dead drop -- any tweets would be sent by a small embedded computer which listens passively on Wifi for a message sent to it from you as you transit past it, then at some random time later fires up the 3G to send to twitter etc (still via Tor). This can be automated to run from an android phone. Of course if this phone is found its credentials can be extracted and it can be turned into a method to locate you. See the FBI CI bust in New York of 'Anna Chapman'. They really should have used Tor, but of course that flags your IP as of interest in the big NSA computer in sub-basement 19.
https://vault.fbi.gov/ghost-stories-russian-foreign-intellig...