Google, Facebook and Microsoft ask the US government to allow them to disclose the security requests they receive for handing over user data.

A US judge sentences a Chinese national, Xiang Li, to 12 years in prison for selling more than $100m (£62m) of pirated US software.

Vodafone confirms it has approached Kabel Deutchland, Germany's biggest cable television company, for a bid thought to be worth 10bn euros.

Drones that can deliver goods are shown off at TEDGlobal as speakers debate the future for autonomous airborne vehicles.

The EU's Justice Commissioner writes to the US attorney general with a list of questions about America's data surveillance programme, Prism.

Ministers must "get a grip" on internet policy to prevent children from seeing online pornography and stop the sharing of abusive images, Labour says.

A Japanese firm carries out what it believes is the first test of streaming 4K resolution television to a set-top box over the internet.

A concept aircraft of the future has been shown off at the TEDGlobal conference in Edinburgh.