States, even relatively benevolent ones, take any steps necessary to secure national secrets, even extra legal ones.
Take the likelihood that a leaky contractor coincidently is a pedophile. One who works in security yet encrypts stuff with the same cellphone password everywhere.
Balance that with the possibility that a motivated state actor could plant such files on a pc or alter logs on a server they are monitoring.
Coincidentally also, it is very much sufficient for a jury to convict yet the accusation is ambiguous/obvious enough to deter other would be leakers.
I have no idea whether this is a good way to do things but it's a pretty widespread set of coincidences that would also happen to have a particular effect.
Take the likelihood that a leaky contractor coincidently is a pedophile. One who works in security yet encrypts stuff with the same cellphone password everywhere.
Balance that with the possibility that a motivated state actor could plant such files on a pc or alter logs on a server they are monitoring.
Coincidentally also, it is very much sufficient for a jury to convict yet the accusation is ambiguous/obvious enough to deter other would be leakers.
I have no idea whether this is a good way to do things but it's a pretty widespread set of coincidences that would also happen to have a particular effect.