UK's health system recovers from cyber attack
The attacks used ransomware, which locks users' files unless they pay the attackers a designated sum in the virtual Bitcoin currency. Images that were posted online of the NHS pop-up look almost identical to pop-up ransomware windows that hit Spain's Telefonica, a powerful attack that forced the large telecom to order employees to disconnect their computers from its network and to resort to an intercom system to relay messages, according to Bleeping Computer .
