Microsoft Office 2008 for Mac 12.3.3 Update
This update improves security. It includes fixes for vulnerabilities that an attacker can use to overwrite the contents of your computer’s memory with malicious code.
Microsoft Office 2011 14.2.2 Update
This update fixes critical issues and also helps to improve security. It includes fixes for vulnerabilities that an attacker can use to overwrite the contents of your computer’s memory with malicious code.
Update, prevention is the best defense against malware.
From the Microsoft blog:
On April 19th, we withheld the Office for Mac 2011 SP2 update through Microsoft AutoUpdate while we investigated issues that affected a small percentage of users. As of this morning, we posted a 14.2.1 update that fixes a number of issues, including the Outlook for Mac database issue, and you can read more about the update in this KB.
This update is primarily preventative and targets those who have not yet installed SP2; however, whether you have or have not installed SP2, please run this update to bring your installation of Microsoft Office:Mac 2011 to the latest version.
Word, Excel, and PowerPoint have improved performance with additional modest improvements. For example, we updated PowerPoint to take advantage of full screen view in Lion, and we improved grammar checkers for Italian and German languages. We also made it easier to work with Office documents on SkyDrive and addressed several smaller issues in response to your feedback.
A full detail of all the updates can be found here.