Attempted cyber attacks

FOI request reference: F0052588
Publication date: June 2018


I would like some information on attempted cyber-attacks upon your organisation over the last three financial years. Please could you list the total number of recorded attacks, broken down by year and by type of attack e.g. malware, denial-of-service, phishing etc. e.g. FY 17-18 1,000 malware, 500 phishing, 500 Denial-of-service.

Please detail whether any of these attacks successful of blocked.




Your request has been handled under the Freedom of Information (FOI) Act 2000. The FOI Act gives you the right to know whether we hold the information you want and to have it communicated to you, subject to any exemptions that may apply.

In this case the section 31(3) exemption of the FOIA applies to your request. This means that we can neither confirm nor deny whether we hold any of this information. Section 31 (1) (a) exempts information if its disclosure under this Act would prejudice the prevention or detection of crime. By confirming or denying whether The National Archives holds information of this type, this could in itself disclose information which would, or would be likely to, prejudice the prevention or detection of crime.
Further guidance on section 31 can be found here: