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
, 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
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
posted by T.D. Strange
on Sep 22, 2014 -
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.
posted by p3on
on Jul 9, 2014 -
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."
posted by jackspace
on Aug 27, 2004 -
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.
posted by Ty Webb
on May 30, 2002 -