AT A GLANCE. Traditional SIEM detection methodologies are essential, however the limitation is based on the dependence of logs which are generated through traditional security controls. Our Network Behavioural Analytics (or NBA) service detects patterns and anomalies beyond those which IPS and firewalls can detect. We tap into network traffic to highlight behavioural anomalies based on packet communications by using applied mathematics and data science. HOW IT WORKS. We use Darktrace unsupervised machine learning to analyse network data at scale, and make billions of probability-based calculations which draw from the evidence that it identifies. Instead of relying on knowledge of past threats, it independently classifies data and detects compelling patterns.