US Attorney General Eric Holder has appointed prosecutors to lead two criminal investigations of high-profile leaks of classified national security information to the media.
US President Barack Obama hit back Friday at accusations that the White House was somehow involved in leaking classified national security secrets, labeling the allegations "offensive."
The top US lawmakers overseeing intelligence stood united Thursday in demanding an end to a "cascade" of national security leaks, as they scrambled to draw up legislation to rein in breaches that they say jeopardize lives.
The top-secret US National Security Agency is not required to reveal any deal it may have with Google to help protect against cyber attacks, an appeals court ruled Friday.
Web wanderers are more likely to get a computer virus by visiting a religious website than by peering at porn, according to a study released on Tuesday.
A hotline between the United States and Russia designed to defuse misunderstandings that could trigger a nuclear conflict will likely expand to cover the potential risk of a cyber war, The Washington Post reported Friday.
Iran is busy acquiring the technical know-how to launch a potentially crippling cyber-attack on the United States and its allies, experts told a congressional hearing on Thursday, urging the US to step up its defensive measures.
Google on Monday raised to $20,000 its bounty on software bugs that hackers could exploit for cyber attacks on the Internet giant's online services.
Veteran FBI cyber security expert Shawn Henry said he is fighting the enemy on a new front by joining a startup out to protect firms from online spies.
Theft of Internet service is on the rise, and experts say only a few of the culprits are being caught.