abc news: The worldwide cyberextortion attack is so unprecedented, in fact, that Microsoft quickly changed its policy, announcing security fixes available for free for the older Windows systems still used by millions of individuals and smaller businesses. By Sylvia Hui, Allen Breed, and Jim Heintz via AP
'After an emergency government meeting Saturday in London, Britain's home secretary said one in five of 248 National Health Service groups had been hit. The onslaught forced hospitals to cancel or delay treatments for thousands of patients, even some with serious aliments like cancer.
'Home Secretary Amber Rudd said 48 NHS trusts were affected and all but six were now back to normal. The U.K.'s National Cyber Security Center said it is "working round the clock" to restore vital health services.
'Security officials in Britain urged organizations to protect themselves by updating their security software fixes, running anti-virus software and backing up data elsewhere.'