I think its about time you did a full rework of the runescape account security options. For example, if your email is compromised, they can remove authenticator, change password, change registered email with no limitations.
Some suggestions:
- record more identifiable information, name, dob, address
- security questions
- registered mobile / cell phone numbers with single use sms codes.
And then for any critical account security changes, require a COMBINATION of the above, not just 1 of them before allowing any account changes to be made.
Multiple other games, services, platforms already do this, why doesnt Jagex?