For months, there’s been a slow drip of tech companies revealing the national security letters that are being sent to them by the FBI to demand user data without a warrant. Yesterday, Twitter posted a statement about two letters it received that are no longer restricted by a gag order. The letters, from 2015 and 2016, demand data from users and notify the company that it is not allowed to discuss the order until an unspecific review in the future. Associate General Counsel for Twitter Elizabeth Banker wrote that the gag order has been lifted and this is the first time the company is allowed to acknowledge the NSLs.
source@gizmodo