Tech review: A look back at the week's headlines
11 April 2014 Last updated at 09:32 BST
Several technology firms have recommended people change all their passwords following the discovery of a major security flaw called Heartbleed. The European Court of Justice has declared "invalid" an EU law requiring telecoms firms to store citizens' communication data for up to two years. And a two-way mirror fitted with facial recognition technology aims to take the perfect selfie.
BBC Click's Marc Cieslak has more details of these and other technology stories of the week.