The controlling element of the Palo Alto Networks PA-220 is PAN-OS security operating system, which natively classifies all traffic, inclusive of applications, threats and content, and then ties that traffic to the user, regardless of location or device type. The application, content and user - in other words, the business elements that run your business - are then used as the basis of your security policies, resulting in an improved security posture and a reduction in incident response time.