Question to the Ministry of Defence:

To ask the Secretary of State for Defence, how many times (a) his Department and (b) each agency sponsored by his Department has experienced a cyber attack in each year since 2010; what the cost to the public purse was of each cyber attack; and who the perpetrator was of each cyber attack.

The hon. Member will understand that it is not possible for me to reveal all details of cyber incidents for reasons of volume and security. For the same reason, it is usual practice not to reveal costs of cyber attacks as this is valuable information that our adversaries can use to determine weaknesses in our systems. The Ministry of Defence is the target of interest for the full range of malign cyber actors and has invested heavily in its defensive capabilities.