Quick Info
| Profession | Intelligence officer and Director General of MI5 |
|---|---|
| Nationality | British |
| Date of Birth | 1974 |
| Birthplace | Glasgow, Scotland |
Latest News about Ken McCallum
Sir Ken McCallum delivered MI5's annual threat update at Thames House, warning that the UK must prepare for escalating Russian hybrid warfare. He also said Iran is seeking to attack harder military targets in Britain, and noted that MI5 is now devoting more resources to state threats than during the Cold War. The speech also announced the launch of an AI Threat Assessment Centre in 2026.
Sir Ken McCallum issued a statement after an IPCO report found MI5 had provided false evidence to the High Court and the Investigatory Powers Tribunal in the Agent X matter. He acknowledged that MI5 fell well short of public expectations and said the agency had since changed its record-keeping, evidence-handling and risk-response policies. Legal proceedings remain ongoing.
Sir Ken McCallum welcomed the National Security (State Threats) Bill after it received Royal Assent. The legislation strengthens the UK's legal tools for countering hostile state activity.
Sir Ken McCallum issued a statement responding to the publication of the Kenova Report, an independent inquiry into the handling of informants in Northern Ireland. The report examined MI5 and police conduct during the Troubles-era period.
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Bio/Wiki
| Full Name | Sir Kenneth Douglas McCallum |
|---|---|
| Summary | Serving as Director General of MI5, the UK's domestic security service, since April 2020 |
| Honours | Knight Commander of the Order of the Bath (KCB) |
Educational Qualification(s)
| University of Glasgow | BSc in Mathematics (1996) |
|---|
Personal Life
| Upbringing | Grew up in Broomhill, Glasgow, and attended a state school |
|---|---|
| Interests | Mountain hiking |
| Family Life | Describes his non-work life as centred on being an active father |
Family
| Children | Has children (details not publicly disclosed) |
|---|
Career
| Early Career | Joined MI5 in 1995 and spent his first ten years focused on Northern Ireland-related terrorism, including work linked to the Omagh bombing investigation |
|---|---|
| Senior Operational Roles | Held senior operational roles countering Islamist extremist terrorism and led early cyber security work with the private sector |
| Led counter-terrorism investigations and risk management for the London 2012 Olympics | |
| Secondment | Worked on digital issues at the Department for Business, Innovation and Skills after the Games |
| Director General Strategy | Held this role from 2015 to 2017, shaping legislation and partnerships with SIS and GCHQ |
| Deputy Director General | Appointed in April 2017, responsible for all operational and investigative work |
| Director General | Assumed the role of Director General of MI5 in April 2020, succeeding Sir Andrew Parker |
| Board Roles | Served three years as a Non-Executive Director of the Nuclear Decommissioning Authority |
| Recent Speeches | Delivered the annual threat update at Thames House in October 2026, warning about escalating Russian hybrid warfare and Iranian state threats |
Some Lesser Known Facts
| 1. Led MI5's response to the 2018 attempted assassination of Sergei Skripal | |
| 2. Kept the nature of his work largely private, even from his children, before taking up the top MI5 post | |
| 3. Returned to the University of Glasgow in 2023 to deliver the Bowman Lecture on the role of mathematics and data science in national security |
