Originally Posted by Ramses II CP
I don't have any social networking site accounts, but 90% of the time when someone gets 'hacked' they weren't careful with their password and it got passed around or was easily guessed. I'm sure there are other vulnerabilities, especially if Facebook lets you add widgets from questionable 3rd parties to your page.
Basic security and data preservation techniques apply. Backup everything you actually care about, use a good password, and don't use content whose provenence is uncertain.
:egypt: