This is CryptoMining. CryptoMining is a QBCore based resource that enables your players to create persistent upgradeable mining racks that will mine cryptocurrency over time. These mining racks are database saved, and are completely synced between players. Each mining rack has a username and password which can be changed by its creator, or anyone who is able to guess or hack the password using a trojan usb. Players will have to ensure they leave their racks signed out, with passwords changed from the default, otherwise they will be vulnerable to thieves!
The default password for every new mining rack is (make sure to tell your players this):