Anonymous hackers are rallying behind Julian Assange, declaring 'cyberwar' on governments and companies that have stopped doing business with WikiLeaks.
Senate confirmation of President Obama's nominee for head of the Transportation Security Administration was delayed by Republican Sen. Jim DeMint over unionization concerns. Experts say confirmation is urgent, but any blame for the attack on the agency is misplaced.
Terrorism on 9/11 permanently altered how passengers respond to airline hijackings, rewriting the conventional wisdom that the best way for passengers to stay safe is to stay quiet.
Mayor Bloomberg moves to expand high-tech surveillance to midtown Manhattan. But civil liberties groups are concerned, and some security experts question its value.
A new initiative aims to better coordinate investigation of cyberattacks on government systems. Efforts to intensify monitoring of the Internet and to broaden wiretapping powers are heating up the privacy debate.
New software combs for clues in al Qaeda tapes, Harry Potter pages, and celebrity waistlines.