If you are a BlackBerry owner, you might want to know that RIM has just recently issued a security advisory for a piece of their software. Not present inside the BlackBerry OS itself, this security flaw is in the ActiveX control that is used by the BlackBerry Application Web Loader. Version 1.0 of the software, in conjunction with Internet Explorer, is vulnerable to remote execution and of course system compromise.
The Application Web Loader is used by many BlackBerry users, as it makes installation of applications to the BlackBerry via a PC fairly easy. The scope of the vulnerability isn't mentioned, though both RIM and Microsoft have issued related security updates surrounding it. An updated version of the software to correct this issue has already been released, which anyone using it should retrieve.