Lone individuals can also take it upon themselves to stalk and try to out people who are trying to exit the organisation. I have personally experienced this when someone sent me a pm asking for information regarding an earlier event in my life. I genuinely believed this person was in distress and sent details of how I had been affected. Later when the elders came to interrogate us about apostate activity they quoted from the PM. I can not tell you how violated I felt. It just so happened that it was the right time to exit so no lasting harm was caused it certainly cemented my decision to walk away.
If you are not ready to jump ship do not divulge personal information to anyone unless you are sure that they are who they claim to be witnesses on a mission are unscrupulous.