The deputy director of the US National Security Agency (NSA), Richard Ledgett, warns of the increasing danger of destructive cyber attacks by states.

Fugitive US intelligence contractor Edward Snowden opens an account on the social network website Twitter.

The White House reiterates its refusal to pardon the government information leaker Edward Snowden.

French President Francois Hollande brands as "unacceptable" reported spying by the United States on French senior officials and warned Paris would not tolerate actions that threaten its security.

There are a few solutions available for those looking to go incognito. Among the most ambitious initiatives in this vein is the Tor Project.

One man is dead and another severely injured after a shootout at one of the main gates of the National Security Agency located at Fort Meade, Maryland.