Sega has revealed it sued and won a case against a serial harasser of one of its staff, and intends to do the same on behalf of all employees.The developer said the unnamed individual had conducted "slander and extreme acts of harassment" on social media toward the employee, prompting legal intervention as the situation escalated.With the court's permission, the company obtained the harasser's personal information and sought damages on the victim's behalf. The individual has been ordered to delete all of its harassing posts and not do it again in the future.Sega went on to call harassment against developers a "serious problem" and pledged similar legal action would be taken against any other malicious behavior against its staff."We are involved in hu…