NSA found a Microsoft software flaw and alerted the firm - rather than weaponize it. The National Security Agency recently discovered a major flaw in Microsoft's Windows operating system - one that could potentially expose computer users to significant breaches, surveillance or disruption - and alerted the firm of the problem rather than turn it into a hacking weapon, officials announced Tuesday.

A former National Security Agency hacker whose leak of extremely top secret online spying materials led to the US government ban on Kaspersky software was sentenced to 66 months in prison Tuesday.