Just so we're clear, the bug only affects bitcoin-qt and not any other 3rd party wallet like multibit right?
I'm going to transfer all my bitcoin to an online account just in case
No worries too much. Problem is with Bitcoin-qt not with Multibit ... I'm going to transfer all my bitcoin to an online account just in case
And offline 3rd party wallets are not recommended to keep your BTCs - online wallets are to keep reasonable amounts not all of your holdings...
Just do not worry as you are multibit user.
Just make sure your computer is behind a firewall, your router is behind a firewall, you can install some additional fire wall, and antivirus, and spybot remover and just keep all safety steps in mind. E-mails, phishing web sites, etc.
regards.