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.
Curious as to what various legal and intelligence agencies can do with the data they are now currently collecting? They are collecting cell phone locations, there are currently license plate scanning vehicles in many larger cities, and Google Maps will gladly integrate with your location mapping systems to show you what type of business is at your coordinates. All state criminal databases are now nationally available. So the ACLU would like you to know what is going to happen in the possible near future.
New documents released by Glenn Greenwald from trove leaked by Edward Snowden show that the agency officially viewed arguments about 'due process' to be an 'adversary propaganda theme', listed alongside military threats to drones. [more inside]
The ACLU reports that the IRS claims in an internal document that it has the authority to access citizens' online communications without a warrant. The IRS claimed in a 2009 document that "the Fourth Amendment does not protect communications held in electronic storage, such as email messages stored on a server, because internet users do not have a reasonable expectation of privacy in such communications." It still retains that position even after the 2010 case of US v Warshak which determined that citizens have a reasonable expectation of privacy in such communications. [more inside]
The Justice Department, after a legal battle with the ACLU to avoid having to admit it, recently released documents showing that the federal government’s use of warrantless “pen register” and “tap and trace” surveillance has multiplied over the past decade. But the Justice Department is small potatoes. Every day, the NSA intercepts and stores 1.7 billion emails, phone calls, texts, and other electronic communications. [more inside]
Newsfilter. Surveillenve of everything you do online: "It was clear that they would go beyond kiddie porn and terrorism and use it for general law enforcement." Offline: "I'm John Doe, and if I had told you before today that the F.B.I. was requesting library records, I could have gone to jail." Previously, here. On your phone? We've already discussed that, too.