Have you ever wondered why Office 2010 provides more active protection for documents than previous versions? And why it has started giving you warnings about files? Like this one, which I see on a regular basis:
Basically, it's about providing enhanced malware protection for students and staff. Experienced IT users can sometimes think that these kind of messages are annoying (after all, I know I've opened a file from an Internet site I trust), but your users - teaching staff and students - can sometimes take actions which potentially harm their computer. Only yesterday I read the story of Virginia Tech being compromised by a data-stealing virus, but they are just one example of the daily battle between you, your users, and the criminal organisations looking to get at your IT systems. (And when you have multiple users using the same computer, as you do in a computer lab or library, you can quickly compound the problem).
Anyway, back to the message bar. Would you like to know more about why you see these messages, and what Office is doing in the background? It's helpful in understanding how and why it is giving malware protection for students.
The Office Engineering team (the ones who design and build Word, Excel, PowerPoint etc) have just published a white paper called Keeping Enterprise Data Safe with Office 2010 , which explains the various security features (and hacker challenges they have to tackle, like 'fuzzing'), and it's a good background read to some of the security and data protection that's in place - and provides an insight that might help you to protect your data and users more effectively.