Flow data (NetFlow/IPFIX, etc.) has been generally known about in the IT community for years, and is used, for example, in use cases such as billing, capacity planning and DDoS protection, primarily in the Telco segment. Enterprises, their IT managers and CIOs have only recently started exploring its tremendous potential. Yet, myths preventing faster adoption of flow technology are still being perpetuated in the networking community. Let's look at the 4 major ones.
Today, threats are not only limited to the internet. Organizations face guests and employees who connect their own equipment into the network or take company equipment home with them. A firewall with IPS capabilities, such as a next generation firewall, is a good first measure to protect against modern day threats, but they will only protect what goes in and out at the network perimeter.