As we all know, a runescape account is not easy to get, especially when you buy runescape account from online websites and it cost a lot. I think you will be worried what you could do if you runescape accounts hacked?
You could write emails to Jagex to get your runescape account back. The email address is email@example.com. But this is not an ideal idea. If I were you, I would write to firstname.lastname@example.org when my runescape account got hacked. Mod Vagos will reply you as long as you remembered all questions for your security questions set when you registered.
If you read my article, I think you will be amazed at how surprising an email means to you.