A few habits go a long way toward keeping your account safe:

Use a strong, unique password for your Jupiter Online account — don't reuse a password from another site or game.

Never share your account details, even with someone claiming to be a game master or staff member; staff will never ask for your password.

Be cautious of links promising free Silk, items, or ranks — these are almost always phishing attempts aimed at stealing your login.

Keep your email account (used for account recovery) secure as well, since it's often the fastest route for anyone trying to take over your game account.

If you ever suspect your account has been compromised, change your password immediately and contact Support through the My Q&A page.