The Commons Defence Committee Chairman told ITV Daybreak that the problem needs to be approached with 'vigour, energy and imagination'.
He said the Government is not yet showing this approach towards protecting cyber security.
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At times a little fair weather cloud may bubble up - and there will be a fairly brisk southeasterly breeze - but it will still feel hot.
Analysis of data from hospitals in England showed patients were waiting longer for ambulances, treatment and admission.
She told reporters: "I don't think it's fully sunk in how really bad that could have been, I know it's not the right decision."