A software security expert say hospitals had left themselves open to cyber attacks because of poor practices in the NHS.
Andrew Avanessian, Vice Chair of Technology at Manchester based Avecto says the attack raises the question is there enough funding in the NHS to take cyber security seriously.
He's been telling ITV News Correspondent Elaine Willcox about some of the simple steps the NHS is failing to take to guard against malware attacks.
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Storm Brian is old news now...
NW bears brunt of Storm Brian
Strong winds until midnight on Saturday for the west of the Granada region especially. Gusts 45-55mph later on Saturday afternoon. Unsettled