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NHS Digital: Trusts sent fix that would have protected them

Health trusts across England were sent details of an IT security patch that would have protected them from the crippling ransomware attack, NHS Digital said.

Large swathes of the NHS have been paralysed by the cyber attack, which hit 200,000 victims in 150 countries around the world.

But NHS Digital said it had made health trusts aware last month of IT protection that could have prevented the attack.

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Companies urged to secure networks after cyber attack

A large section of the NHS was hit by the cyber attack Credit: PA

Government bodies and other organisations could also be affected by the malware attack that brought down some NHS services, a cyber security expert has warned.

Companies operating large networks, thought to be particularly vulnerable, are being urged to make sure they are secure in the wake of the attack.

"Absolutely it's highly possible that as the days come forward unfortunately we are going to hear that more organisations and government bodies are going to have been affected," cyber security expert Paul Norris said.

"Unfortunately, it's going to be big names and it's going to be organisations that have got weakened security controls that are going to be mostly impacted by this."

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