An international mobile subscriber identity (IMSI) is a unique number, usually fifteen digits, associated with Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS) network mobile phone users. An IMSI catcher is a device, used by the NSA drone program, the police, criminals, Chinese spammers and spies all around Washington DC and the world to spoof the identity of a GSM cell tower and intercept cellular voice and data communication. They come in all sizes and flavors, from tiny or body-worn professional surveillance devices, to easy to order off the shelf solutions, to Chinese DIY (links in Chinese) and have spawned efforts to retaliate with an IMSI-catcher-catcher. IMSI-catcher technology has become increasingly widespread, with far-reaching constitutional and technical implications.
In one of the most damning Snowden leaks yet revealed, Glenn Greenwald and Murtaza Hussain show that the NSA targets prominent Muslim-Americans under the FISA secret court program. The Office of the Director of National Intelligence has in response issued a denial that any Americans were targeted for exercising their constitutional rights via its tumblr.
A worshiper at a California mosque called frequently for violent jihad against the West. This freaked out his fellow attendees so much that they took out a restraining order on him... and learned he was an informant planted by the FBI.
FBI Probes Pentagon Spy Case - Interesting how bad news about the Bush Administration seems to always come out on Fridays - "the FBI has a full-fledged espionage investigation under way and is about to -- in FBI terminology -- "roll up" someone agents believe has been spying not for an enemy, but for Israel from within the office of the Secretary of Defense at the Pentagon."
Despite the FBI's best efforts, the spy only passed public domain information to North Korea In Graham Greene's hilarious "Our Man in Havana", a salesman-unlikely-turned-spy passes vacuum-cleaner blueprints as plans of a nuclear plant to his superiors at MI6. Turns an American of Korean origin has been doing pretty much the same with North Korea and thus cannot be charged with espionage. One can only hope that the current bullish attitude of North Korea is all based on the info passed by this guy (who, BTW, sold it for cash).
Government Will Ease Limits on Domestic Spying by F.B.I. (NY Times link) As part of a sweeping effort to transform the F.B.I. into a domestic terrorism prevention agency, Attorney General John Ashcroft has decided to relax restrictions on the bureau's ability to conduct domestic spying in counterterrorism operations, senior government officials said today. Here's the Wash. Post's take on the story.
FBI software cracks encryption wall The FBI is developing software capable of inserting a computer virus onto a suspect’s machine and obtaining encryption keys...