Nearly 4,000 Ministry of Defence passes were lost or stolen in 2025, triggering fresh concerns over the security of Britain's most sensitive military sites. Official figures show 3,921 passes went missing last year alone — including 281 believed to have been stolen — raising fears that access credentials used to enter restricted defence locations are being misplaced at an alarming rate.
Security experts have warned that the rising number of Ministry of Defence (MoD) passes being lost or stolen represents a growing security risk, particularly as modern access passes are increasingly embedded in, or accessed through, official devices such as laptops, tablets and mobile phones. Roughly 3,921 passes were reportedly missing in 2025, with 281 believed to have been stolen.
