National Security Letters

Cyber Law Tracker: FBI Prohibited From Issuing National Security Letters

In a detailed opinion issued just this month, the U.S. District Court for the Northern District of California struck down an oft-used FBI counterterrorism tool. Under the statute at issue, the FBI has issued tens of...more

Judge Strikes Down FBI’s Use of ‘National Security Letters’

In a recent decision, U.S. District Judge Susan Illston of the Northern District of California struck down the FBI’s use of National Security Letters (NSLs) as unconstitutional. Unbeknownst to most Americans, the FBI has been...more

California District Court Finds National Security Letter Statute Unconstitutional

Last week, in In re National Security Letter, the United States District Court for the Northern District of California found unconstitutional two sections of the federal law allowing the FBI to issue “National Security...more