It seems like RocketChat is popular with these groups, Oathkeepeers apparently had one of their hacked. What I'm wondering is how these hacks are happening. Is

It seems like RocketChat is popular with these groups, Oathkeepeers apparently had one of their hacked. What I'm wondering is how these hacks are happening. Is RocketChat itself insecure, or are they using poor sysadmin practices? Or is this all based on compromised individuals being given access normally? You don't really know how secure your software is until it gets used by somebody that people really want to hack.