Leia: So you're part of the mining guild then?
Lando: No, not actually. Our operation is small enough not to be noticed.
Han: Aren't you afraid the Empire's going to find out about this little operation? Shut you down?
Lando: It's a danger that's loomed like a shadow over everything we've built here. But things have developed that will ensure security. I've just made a deal that will keep the Empire out of here forever.