Network security is the strategic combination of hardware and software designed to protect the sensitive data housed within the corporate data center. Network security has evolved over the years as more traffic is bound for the internet than is staying on the local network. Today’s stack in a security gateway, which monitors traffic going to and from the internet, includes a complex array of firewalls, intrusion prevention systems, sandboxes, URL filters, antivirus technology, data loss prevention systems, DNS filters, and many more devices and tools designed to keep outside attacks from entering the network and reaching the data and intellectual property inside.