Edit: speaking from US banking, I think it’s probably different in other countries with updated banking practices.

Recruitment scams tend to involve the hirer sending you a large check to cover office setup purchases from the hirer’s “trusted vendor” and you keep the excess as your first paycheck. Unfortunately, the check is fake and the vendor is just the hirer behind a fake website. But the check “clears” in a couple of days, so you think you have the money, and you spend that money in the fake website, then your bank lets you know the check was fake and takes all the money back.

I’m sure there are other scenarios but they all involve a fake payment that eventually gets taken back. Glad you weren’t taken in.