A massive cyber-attack has struck organisations in several countries. Computers in thousands of locations were locked by a programme that demands equivalent of 300 US dollars to unlock the systems. A large number of hospitals across Britain were hit by the cyber-attack, shutting down their computer systems and forcing the cancellation of patient appointments.
Britain’s National Health Service said, hospital computers were infected with a type of what they called ransomware that blocks the use of a computer system. Hospitals in areas across Britain found themselves without access to their computers or phone systems.
British Prime Minister Theresa May said there was no evidence that patient data had been compromised in the attack. Similar incidents were reported from the United States, China, Russia, Portugal, Italy and many other countries