Singlemalt
Well-Known Member
steganographyA crisis actor is a trained actor, role player, volunteer,
or other person engaged to portray a disaster victim
during emergency drills to train first responders such
as police, firefighters or EMT personnel.More at Wikipedia
https://www.livescience.com/6652-russian-spies-hid-secret-codes-online-photos.html
Thank You so refreshing from the Clich'e of
Russian Spies