[Cryptography] Paris attackers used OTP's: One Time Phones

[dan at geer.org]

 | I noticed that these attackers were activating the phones only just
 | before they used them. Presumably they were bought for cash. They
 | would have to have some way of knowing the number they had to call
 | after activation so they could talk to other co-conspirators but that
 | would be pretty easy to mask.

I'm waiting for a free-conference-call number to be implicated.

--dan