New hacking epidemic

My suspicion is that if your destination requires a port switch at the server side, i.e. channel change, mts, cash shop, exiting and entering game, there's a chance for your character to be hijacked. Exiting the game is probably safe since there's no point for the hacker to take over there, unless they can somewhat revert the call halfway and direct your character transfer somewhere else. Logging onto the game might be tricky to track and anticipate, unless you're relogging.