Flat networks have become so prevalent because they are typically simple to architect, cheap to construct and easy to operate and maintain. However, it turns out that malicious actors love flat networks, too. That’s because once a single host on a flat network has been compromised, the integrity of the rest of the network starts to resemble a house of cards. Once an enterprise is penetrated, the flat network delivers the uninvited and unwelcome guest unfettered network access to scan, identify and target high-value assets. Unfortunately, many organizations fail to mitigate or even fully recognize these risks.