What technique is effective for analyzing traffic after a data breach?

Analyzing traffic after a data breach is crucial for understanding how the breach occurred and what data may have been compromised. Network discovery is an effective technique in this context because it involves mapping out the network and identifying all devices and connections within it. This helps security professionals determine the extent of the breach, identify unauthorized devices that may have been introduced, and observe the patterns of network traffic that occurred during the incident.

By performing network discovery, analysts can collect information about the devices interacting on the network, including their IP addresses and the services they are running. This can give insight into which devices were targeted or exploited during the breach. In addition, it allows for monitoring traffic flow to identify anomalies that could indicate further malicious activity or data exfiltration.

While other techniques may have their specific uses in cybersecurity, they may not provide the same breadth of information about network activity and device interactions that is essential for a thorough post-breach analysis.