A Conservative MP has said “it beggars belief” that troops stationed at sensitive military sites have revealed their locations through a popular exercise app. More than 500 people have shared their personal details and exercise activity within some of defence’s most sensitive bases publicly on Strava since the turn of the year, according to reports.

Mr Obese-Jecty, a former Army officer and MP for Huntingdon, said on X: “I stopped using Strava when I became an MP and I locked down my profile long before that. The app has numerous features to enable you to keep your data private.

“It beggars belief that our armed forces don’t have a grip of this given the current, and very real, threat posed by sub-threshold activity from our adversaries.”

Workouts have been logged publicly at bases including HMNB Clyde in Faslane — the home of the Royal Navy and the UK’s Trident nuclear deterrent — and Northwood, the UK’s principal military headquarters, as revealed by The i Paper.

Routes were also logged at RAF Akrotiri — the base in Cyprus hit by a drone last month — and the joint UK-US base Diego Garcia from where American bombers are launching defensive strikes on Iran.

Runners at the base in the Indian Ocean jokingly called one route “Security Breach”.

The i Paper found that 519 contractors, officers, staff and family members have posted runs within restricted areas at some of Britain's most sensitive bases since January, with troops from all ranks logging data.

It reported that one route was logged within Faslane’s restricted area and revealed details that helped to identify the specific nuclear submarine to which an official was assigned to.

The locations of the bases are not secret but it was warned some of the information publicly posted on Strava could be used by enemies to help pinpoint potential attacks.

It follows reports in March that the location of France’s Charles de Gaulle aircraft carrier in the Mediterranean was revealed by an officer who publicly uploaded his run on the ship’s flight deck to Strava.

A Ministry of Defence spokesperson said; “We take the security of our personnel very seriously and keep guidance for them under constant review.”