It appears that the Clash of Clans & Clash Royale forums have been hacked since September of last year. It is recommended that you change your game account’s password just to be safe. If the email you registered with shares the same password as the one for the forum, then you should immediately change your email’s password.
These things happen and you can never be sure which game’s forums or database will be hacked, so always be sure to use a different password for each email or account that you have. What is troubling is that Supercell waitied over 3 months to inform us of the hacking incident but it is what it is. Stay tuned with our website for the latest news on Supercell games.