IT expert who stopped the NHS hack warns the virus could come BACK TO LIFE in computers that have already been 'fixed'

A cyber attack which crippled more than 200,000 computers in 150 countries could strike again on Monday coming back to life in systems that have already been fixed. The anonymous British IT expert who discovered a 'kill switch' which slowed the spread of the ransomware fears that it has a 'back door' installed - meaning hackers could easily inject a new strain of the virus. -- More...