The Ministry of Defence (MoD) has refuted claims made in The Mail on Sunday that secrets about the new F-35B jets were leaked in a honeytrap plot.
A report in the newspaper claims: "In a sophisticated sting operation, the profile of an RAF airwoman on dating app Tinder was hacked, allowing a spy, posing as the woman, to contact RAF servicemen and sweet-talk at least one into revealing details about the F-35 Lightning II fighter."
The article, on the front page of the newspaper, was headlined: "Honeytrap spy stole secrets of new RAF jet."
The article goes onto say: "While the RAF say 'little information' was lost, any breach of security around the F-35 will be seen as deeply damaging and highly embarrassing by service chiefs."
A warning has now been issued to all RAF personnel about “online social engineering”:
In a statement, an RAF spokesperson denied any information had been lost, saying: "No F-35 secrets have been stolen, as the headline inaccurately claims.
"No F-35 information of a sensitive or classified nature has been disclosed via a dating site.
"The member of RAF personnel involved is not even associated with the F-35 programme."