A method of handling safety of an industrial robot of a robot system, the method including providing at least one virtual safety border defined in relation to the industrial robot, where each virtual safety border is associated with a condition to be fulfilled by the industrial robot; for each virtual safety border, performing an indication operation by the robot system, where the indication operation indicates a position of the virtual safety border in a physical workspace of the industrial robot; and for each indication operation, receiving a verification input from a user. A control system and a robot system are also provided.