[jasonjei]

The very problems that plague the unprotected networks to the site-to-site VPNs are the same: all it takes is one piece of malware. In fact, the complacency is the alarm. Just because you are in a "protected" network doesn't mean there aren't bad actors. The bad actors can get in, all they need is to find where your walls have a crack. There's a reason we call it Computer Insecurity.