Tag: DHS-FBI-NCTC Bulletin: Extortion Schemes Use Telephony-Based Denial-of-Service Attacks

Roll Call Release 1 page For Official Use Only February 6, 2014 (U//FOUO) Since at least January 2012, criminals are using telephony-based denial-of-service (TDoS) combined with extortion scams to phone an employee’s office and demand the employee repay an alleged loan. If the victim does not comply, the criminals initiate TDoS attacks against the employer’s…