Facebook/Twitter etc "bans"
Ross Anderson
Ross.Anderson at cl.cam.ac.uk
Fri Aug 12 08:20:28 BST 2011
Adrian:
> Surely it is more useful to read, and record, them and be inside their
> decision-action loops and able to intercept them on the ground
I was fascinated to read that the RAF supplied three helicopters to
the police to help them track events.
I wonder whether these were tactical sigint units. Modern kit can
break A5/1 in tens of milliseconds, allowing real-time decryption of
all the channels in a cell, and with directional antennas an airborne
monitor can hoover up the traffic from quite a few cells at once.
What you really need is to know where the looters are headed now, not
where they were yesterday once Blackberry hand over the logs.
Real-time traffic analysis, including location analysis, of everyone
in London, is much better done from an airborne platform than by
serving paperwork on dozens of different communications service
providers
Ross
More information about the ukcrypto
mailing list