system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars: The Force Awakens]Who snitched?

who leaked that Loor San Tekka had the map?
gpt
It wasn't necessarily a leak.

A lot of times, the Empire did this through simple process of elimination.  Target A and Target B didn't have the intel (but we blew their bases to fuckin' smithereens, just to be sure), so it follows that Person C has *got* to have it.  In this case, when everyone else proved not to have the intel, it only followed that this Tekka dude was the only possible person left to have it.

Other times, advanced interrogation techniques are utilized.  In cases like these, it's not so much someone leaking intel to the First Order as it is the intel being wrung out of them.  That's also been proven to get results.