A packet capture involves collecting all the packets that pass through a certain point on a network. It allows security professionals to see the data being transmitted over the network, which can be valuable for analyzing traffic, troubleshooting network problems, or investigating security incidents. Examining packet contents helps to identify malicious activities, policy violations, or unauthorized data exfiltration. It's a detailed form of network monitoring used to closely inspect network traffic.
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What tools are commonly used for packet capture in network security?
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What is the difference between a passive and active packet capture?