Comex would have had to make its jailbreak solution available for the Bundesamt en Sicherheit in der Informationstechnik (the German federal IT security administration) to reveal the famous flaw in iOS 4.3.3 on Thursday.
These “experts” recommend that users, while awaiting a fix (an iOS update), “only browse on trusted sites”, and only open links in emails if they user is certain of their reliability.
In the meantime, if you have jailbreaked your iDevice with the Comex solution, we can only recommend that you install the PDF Patcher 2 tweak to protect yourself from all these possible intrusions (read: Closing the flaw used by jailbreakme.com).
Finally, an iOS update is likely to be released in the coming days.
We discuss it on the forum.