A global cyber attack has infected tens of thousands of computers in 99 countries on Friday. Britain’s health system was paralyzed, global shipper FedEx were disrupted. The hackers blocked computers and demanded a ransom of 300 USD in bitcoins. It is believed that the hacking tools have been developed by the U.S. National Security Agency. … The post Global cyber attack demanding ransom in Bitcoin hits 99 countries appeared first on Keep Talking Greece.