chat

First thing, is your boss "cool"? If so, maybe find a way to contact them outside of corporate monitored channels and let them know. It might turn out they're doing you a solid.

If you've got any paperwork about your employment, you might try finding and rereading it to make sure you're not on something that could be argued is a kind of "retainer".

If you boss isn't cool, you might need to contact HR. If you aren't doing peicemeal work, are getting paid a salary, and you haven't been terminated maybe there's a case that nobody is going to try to clawback the pay.

For multiple reasons you should let them know that they are paying you in error. The longer you let it go on, the more of a problem it will become imo.

You're legally obligated to pay back if discovered depending where you live

Either invest it in a HYSA for risk free money or be prepared to move away if discovered to avoid the debt collection

Some people have fought it in court and won though

Don't lie to them that'd fuck you legally. Can you just ignore them and ghost and if that happens?

Did you have to sign a thingy that authorizes them to take back overpayments when you enrolled in direct deposit or whatever?