We have multiple help pages for our games that give examples for how to keep an account secure:

• Artix Accounts (and for our games EpicDuel, HeroSmash and OverSoul)
  • How to keep an Artix Account secure
  • How an Artix account can be hacked/compromised
• AdventureQuest Worlds
  • How to keep an AQWorlds account secure
  • How an AQWorlds account can be hacked/compromised
• DragonFable
  • How to keep a DragonFable account secure
  • How a DragonFable account can be hacked/compromised
• AdventureQuest
  • How to keep an AdventureQuest account secure
• MechQuest
  • How to keep a MechQuest account secure