Working on fintech and transaction rails? Probably. I had to know regulations when I worked in fintech. Plus, you don't have to know the law to be found guilty of breaking it.

The engineers working on this are innocent until proven guilty, but you'd better believe all internal comms, meeting notes, and commit messages will be scrutinized.

Someone had to ask for the system to behave this way, and that will have produced certain artifacts.

Engineers with knowledge may be cut deals to testify against the bigger players.