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Data encryption in sharp focus after deadly attacks

With renewed focus on how encrypted messages can be used to plot terrorist attacks, President Barack Obama's administration is stepping up pressure on the tech sector to help in the battle.

WikiLeaks publishes CIA director John Brennan's emails

The WikiLeaks organization posted material Wednesday from what appears to be CIA Director John Brennan's personal email account, including a draft security clearance application containing personal information.

While Clinton used home email, State's networks were at risk

Hillary Rodham Clinton has come under fierce criticism for doing business over personal email while secretary of state, putting sensitive data at risk of being hacked. But her communications may not have been any more secure ...

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