Microsoft Security Advisory MS01-028 - Microsoft Word contains a vulnerability in RTF documents linked to templates which allows malicious users to run macros without the users knowledge or approval. The macro would be able to take any action that the user herself could take. This could include disabling the user's Word security settings so that subsequently-opened Word documents would no longer be checked for macros. Microsoft FAQ on this issue available here.
Microsoft Security Advisory MS01-028 - Microsoft Word contains a vulnerability in RTF documents linked to templates which allows malicious users to run macros without the users knowledge or approval. The macro would be able to take any action that the user herself could take. This could include disabling the user's Word security settings so that subsequently-opened Word documents would no longer be checked for macros. Microsoft FAQ on this issue available here.