A report from the National Audit Office has warned that ministers need to address the skills gap for IT and security specialists.
The threat to cyber security is persistent and continually evolving.
Business, government and the public must constantly be alert to the level of risk if they are to succeed in detecting and resisting the threat of cyber attack.
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The major party leaders' campaigns for the General Election will remain suspended on Wednesday following the Manchester terror attack.
Thousands of people have donated to help the families of the victims - as well as a homeless man who came to their aid.
Some children, particularly those who have been more directly affected, may show symptoms of stress and trauma.