British hospitals say hit by large-scale suspected national cyber attack

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London | Updated: May 12, 2017 10:29 PM

British hospitals urged people with non-emergency conditions to stay away after a cyber attack affected large parts of the country’s National Health Service.

Following a suspected national cyber attack we are taking all precautionary measures possible to protect our local NHS systems and services. (Reuters)

British hospitals urged people with non-emergency conditions to stay away after a cyber attack affected large parts of the country’s National Health Service. Sixteen NHS organizations were hit in the U.K. on Friday, while a large number of Spanish companies were also attacked using ransomware. It’s not yet clear if the attacks were coordinated.

“The NHS has experienced a major cyber attack, we are working with law enforcement and our advice will follow shortly!” Action Fraud, the U.K.’s central cyber-crime unit said on Twitter. The National Cyber Security Center said: “We are aware of cyber incident and we are working with NHS Digital and the National Crime Agency to investigate.”

Hospitals in London, North West England and Central England have all been affected, according to the BBC. Mid-Essex Clinical Commissioning Group, which runs hospitals and ambulances in an area east of London, said on Twitter that it had “an IT issue affecting some NHS computer systems,” adding “Please do not attend Accident And Emergency unless it’s an emergency!”

A screen-shot of an apparent ransom message, sent to a hospital, showed a demand for $300 in bitcoin for files that had been encrypted to be decrypted.

Workers across the NHS have since been sent emails from the health service’s IT teams warning not to open or click on suspicious attachments or links.

Spain’s National Cryptologic Center, which is part of the country’s intelligence agency, said on its website that there had been a “massive ransomware attack” against a big number of Spanish organizations affecting Microsoft Corp.’s Windows operating system. El Mundo reported that the attackers sought a ransom in bitcoin.

Ransomware typically gets onto a computer when a person unsuspectingly downloads a file that looks like a normal attachment or web link. A hacker can then trigger the malware to freeze the computer, prompting a person to pay a ransom or lose all their files.

Hospitals have been a common target because the culprits know how critical digital records are for treating patients. There have been several incidents in the U.S., including one in Indiana where a hospital’s IT system was taken down and patients had to be diverted to other facilities, according to a local news report.

Ransomware attacks have also been soaring. The number of such attacks increased 50 percent in 2016, according to an April report from Verizon Communications Inc. These types of attacks account for 72 percent of all the malware incidents involving the healthcare industry in 2016, according to a Verizon.

“The large-scale cyber-attack on our NHS today is a huge wake-up call,” said Jamie Graves, chief executive officer of cyber-security company ZoneFox.

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