NHS braces for weekend of chaos after cyberattack

At least 30 health service organisations in England and Scotland have been affected by the hack attack, while others have shut down servers as a precautionary measure to avoid contagion.An alleged hacker unconnected to the incident told Sky News the attack could spread to nearly every country in the world.The National Cyber Security Centre is working on a major operation in response to the attack, which it said targeted "thousands of organisations and individuals".