In the quest to protect your organization from insider threats, you must have executive buy-in, and responsibility and accountability also need to be placed in the hands of network users.

This involves management supporting and posting security policies and then effectively communicating to employees the standards to which they're being held. This must take place over and over again to be effective. Technical solutions such as content monitoring products are merely a means to that end--not the end itself.

But implemented for the right reasons and in the right way, these technologies can serve as a great monitor to ensure that your most critical data isn't dripping out of your network.