Super Junior member Siwon left warning message to fans.

Siwon posted a message on his twitter today, "True love is to understand the person that you care for rather than invading their privacy. Please do not hack my account. Please.”

Siwon revealed that his account was hacked last January he posted in English, "I know who you are. I will not tell anyone though. Please stop this. Please."

After hearing this news, internet users commented, "Siwon's comment is true. True love is not about invading other’s privacy,” Is it a stalker fan who hacked his Twitter account?" "I worry about the stress that Siwon may have." and "Shouldn’t they stop hacking if they really care for Siwon."