The Commons Defence Committee are warning the Government needs to take a more hands on approach to UK security.
Hearing evidence that entire combat units could be rendered completely dysfunctional by a cyber attack, they said details of contingency plans should be set out.
Given the inevitable inadequacy of the measures available to protect against a constantly changing and evolving threat ... it is not enough for the armed forces to do their best to prevent an effective attack.
In its response to this report the Government should set out details of the contingency plans it has in place should such an attack occur.
If it has none, it should say so - and urgently create some.
More top news
Benedict Cumberbatch heads up a group of all-star actors who have shot short films in defence of the Act.
A modified version of the herpes virus has proved a major success in phase III clinical trials.
The WWF reports that these new species were all found in 2014 - but that human development is already threatening many of them.