I'm not saying such claims are not being published, I'm saying they're likely false because they make about as much sense as a country blowing up its own pipeline. Espionage outside of war is an extremely sensitive issue, and were any country trivially baitable, they'd end up getting played hard. Not only would it eliminate deniability, but you also open up the door to major counter-intel operations and getting more insight into the operations, potentially on a massive scale, of an adversary.
I suspect this is why there's endless stories, in pretty much every country, of dissidents handing over information to 'enemy states' who are in fact just domestic law enforcement. These people glow to everybody, and no foreign power's going to touch them.