Dishonest brokers, or more precisely - cybercriminals, use various manipulation techniques and methods to steal your money.
Usually, for stock fraud (including Bitcoin or Global Maxis frauds), they use the AnyDesk program, after which they can track your computer screen and even take control of it. They see your logins and passwords, so they can not only clear your account, but even take out a loan or credit in your name.
Over time, contact with them becomes difficult, and you not only don't earn money, but you also lose money.