Denied, i dont think it's necessary..
Anyway, most of the account break are caused by the players themself, either because using weak password or using same password in newly created, random servers. I've said this many time, some server save their players password in plain text & they can easily see and use your password to access your account in other server. To keep your account safe, use strong password and dont use same password in new/random servers that cant be trusted. It's also important to disable auto-login if you share computer.