A network monitoring solution should be able to detect activity indicative of ransomware attacks via insecure protocols. Users could also leverage methods such as tunneling, external anonymizers, and VPNs to get around firewall rules.Īdditionally, the rise of ransomware as a common attack type in recent years makes network traffic monitoring even more critical. Even with strong firewalls in place, mistakes can happen and rogue traffic could get through. Keeping a close eye on your network perimeter is always good practice.
Deep packet inspection (DPI) tools provide 100% visibility over the network by transforming the raw metadata into a readable format and enabling network and security managers to drill down to the minutest detail. Packet data extracted from network packets can help network managers understand how users are implementing/operating applications, track usage on WAN links, and monitor for suspicious malware or other security incidents. This level of information can help detect unauthorized WAN traffic and utilize network resources and performance, but it can lack rich detail and context to dig into cybersecurity issues. Flow data is great if you are looking for traffic volumes and mapping the journey of a network packet from its origin to its destination. Respond to investigations faster with rich detail and additional network contextĪ key step of setting up NTA is ensuring you’re collecting data from the right sources.Troubleshoot operational and security issues.Improved visibility into devices connecting to your network (e.g.The network is a critical element of their attack surface gaining visibility into their network data provides one more area they can detect attacks and stop them early. With the “it’s not if, it’s when” mindset regarding cyber attacks today, it can feel overwhelming for security professionals to ensure that as much of an organization’s environment is covered as possible.
It’s important to also consider the data sources for your network monitoring tool two of the most common are flow data (acquired from devices like routers) and packet data (from SPAN, mirror ports, and network TAPs). However, knowing how to monitor network traffic is not enough. Implementing a solution that can continuously monitor network traffic gives you the insight you need to optimize network performance, minimize your attack surface, enhance security, and improve the management of your resources.
Detecting the use of vulnerable protocols and ciphers.Detecting malware such as ransomware activity.Collecting a real-time and historical record of what’s happening on your network.Network traffic analysis (NTA) is a method of monitoring network availability and activity to identify anomalies, including security and operational issues.
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