The US National Secutiry Agency (NSA) has knew about the Heartbleed bug for at least two years before it was revealed, according to Bloomberg.
One person 'familiar with the matter' told the news agency that the NSA preferred to keep the bug secret in order to harvest the private data the flaw exposed.
More top news
Passengers cry out and prayers are heard as a plane endures turbulence so severe it forced the pilot to take an unscheduled landing.
Michael Swain says the 'fantastic' surgery has made a huge difference to his life.
The brother of a teen who disappeared in 1979 has told ITV News he is "convinced" he was a victim of an alleged Westminster paedophile ring.