The Electronic Frontier Foundation (EFF) filed a class-action lawsuit against AT&T on January 31, 2006, accusing the telecom giant of violating the law and the privacy of its customers by collaborating with the National Security Agency (NSA) in its massive, illegal program to wiretap and data-mine Americans' communications.

This is the amici brief of consumer rights groups: center for digital democracy, consumer federation of americe, consumer union, privacy acyactivism & us public interest research group in support of appellees.