We are trying to lock down our data to prevent leakage. I'm not taking about un-authorized access. I'm talking about making sure that data that people are authorized to access doesn't get into the wrong hands ... such as competitors.
I can lock down my firewall to prevent access to certain sites. I can block webmail internally. I can restrict email ... somewhat. But at least I can see what was sent to who.
However if a file is on a laptop and the laptop is not in the office, how can I prevent them from emailing that to someone via webmail? Or downloading to a web site?
Also relative to data leakage. We have folks that may travel and occasionally need to visit the business center of the hotel to print documents. We have disabled the use of USB drives because of security concerns. If they use OWA, that will let them print, but it leaves a thumbprint on the PC. And it also gives the ability to leave the document open or download the file without us knowing about it. I've tried to find ways to open and print, but not allow them to save, but have been unsuccessful at doing so. When I restricted via HTML access only, the formatting was all messed up when we tried to print it.