@ PT6A,
Yes, I do work for a UK airline. You are right that we canīt legally stop people taking our photo onboard the aircraft. When I had those 2 guys a couple of weeks ago, I asked them what were taking pictures of and he was the one who showed me his camera without being asked and even apologized. I approached him with a smile and spoke politely and I feel they were not expecting me to have noticed they were taking a picture of me and were a bit embarased. Anyway, I asked and luckily they deleted it. Obviously I am aware that throughout the 16 years Iīve been flying people might have taken my photo without me realizing it...