PCAP: Packet Capture in Cybersecurity

Network Security
ByDecipherU Editorial
How is it pronounced?
PEE-cap/ˈpiː.kæp/

PCAP stands for Packet Capture. PCAP is the process of intercepting and recording raw network packets for later analysis. PCAP files contain complete packet headers and payloads, giving analysts full visibility into network communications.

How PCAP Is Used in Cybersecurity

Incident responders analyze PCAP files to reconstruct attack sequences and extract transferred files or credentials. SOC analysts use PCAP data to verify whether an alert represents a true positive by examining the actual traffic. Penetration testers capture packets during engagements to demonstrate data exposure risks.

Read the full glossary entry: Packet Capture in Cybersecurity

Cybersecurity Roles That Work with PCAP

Related Cybersecurity Acronyms

Frequently asked questions

What does PCAP stand for?

PCAP stands for Packet Capture. PCAP is the process of intercepting and recording raw network packets for later analysis. PCAP files contain complete packet headers and payloads, giving analysts full visibility into network communications.

What is PCAP used for in cybersecurity?

Incident responders analyze PCAP files to reconstruct attack sequences and extract transferred files or credentials. SOC analysts use PCAP data to verify whether an alert represents a true positive by examining the actual traffic. Penetration testers capture packets during engagements to demonstrate data exposure risks.

Last verified: April 2026?Report an inaccuracy