sinkies are easy to hoodwink, some good words and a peg on the shoulder, perhaps a empty promises, it's done. let move on to another pennies for dollar deal. go see wonder of nature like blue whale giving birth.
No law broken. The official secrets act would only apply if he had accessed Alex's records. However if he knew about it because he was a camp mate, it does not apply.
Alex can of course sue him for public discourse of private facts that defame his character.