In this line of work I find myself talking with network professionals daily. With this constant exposure to a variety of network environments and people, certain terms tend to float to the surface. Lately DDOS and Reflection DDoS attacks are on the threats to discuss. They are becoming easier to conduct and larger in scale, and due to the lack of network visibility we can clearly see why there would be an upward trend in the frequency of attacks. Today we are going to take a look at a member of the denial of service family, DRDoS (Distributed Reflection Denial of Service) attacks and how we can harness the power of NetFlow to catch and monitor these attacks.