As an IT professional, I have seen that many organizations have holes in their layered enterprise security strategy, yet most are unaware of where these holes are or how to fix them. As IT professionals like myself continue to face a growing number of complex challenges, more and more businesses are moving from traditional security approaches like perimeter security and trust but verify, to zero trust security models which assume that every user and device on the network is equally untrustworthy. Let’s take at what layered enterprise security is and how you can use it to properly defend your organization.