[145315] in cryptography@c2.net mail archive
Location services risks (was: Re: Spy/Counterspy)
daemon@ATHENA.MIT.EDU (John Ioannidis)
Sun Jul 11 19:25:34 2010
Date: Sun, 11 Jul 2010 17:50:08 -0400
From: John Ioannidis <ji@tla.org>
To: "cryptography@metzdowd.com" <cryptography@metzdowd.com>
In-Reply-To: <2D5FFA13-067C-4CD4-B569-6BE32188D923@lrw.com>
Location-based services are already being used for dating services (big
surprise here). Mobiles send their location to a server, the server
figures out who is near whom, and matches them. There are lots of
variants on that. An obvious risk here is that the server is acting as
a location oracle, allowing me to triangulate. Or I can fake my location
to be my mark's, and see if he is "near" there. A senator no longer
even has to have a "wide stance" to be caught cruising :)
/ji
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