Microsoft has updated its flagship Mac product, Microsoft Office for Mac in both the 2011 and 2008 editions, along with a separate update for Entourage Web Services for Office 2008. The updates fix critical security issues and also help improve overall security, including "fixes for vulnerabilities that an attacker can use to overwrite the contents of your computer's memory with malicious code," according to the release notes. In addition, the 2011 Office update delivers several bug fixes, and the Entourage update now syncs information with Exchange Server.