MI5 Director Apologizes for Intelligence Failures

Director General Ken McCallum issues multiple apologies for past intelligence shortcomings.

New York Editorial News Desk September 25, 2026 1 min read

The Brief

McCallum apologized in 2023 over missed intelligence in Manchester Arena attack.
He admitted MI5 withheld information that could have prevented the attack.
McCallum has apologized three times since becoming director in 2020.

Ken McCallum, the Director General of MI5, has issued three public apologies since taking office in 2020.

In 2023, he said he was 'profoundly sorry' following an inquiry into the Manchester Arena attack, which resulted in 22 fatalities.

The inquiry found that MI5 had mistakenly withheld actionable intelligence that could have potentially prevented the attack.

The repeated apologies reflect ongoing scrutiny of MI5's performance amid heightened national security concerns.

The agency, established in 1909, faces increasing pressure to maintain public confidence following past controversies.