Internet Protocol Security (IPsec) Glossary Definition

Internet Protocol Security (IPsec) is a suite of protocols used to authenticate and protect IP network traffic.

Internet Protocol Security (IPsec) is a Network Security concept used to protect traffic, access, devices, applications, or segments from misuse or attack.

Internet Protocol Security (IPsec) appears in secure-communications designs, certificate management, cryptographic reviews, and compliance documentation. It is retained here because professionals may encounter the term in NIST guidance, security reviews, or technical documentation and need a concise public explanation.

Security and infrastructure teams use this concept to reduce exposure, enforce access boundaries, inspect traffic, and limit the impact of compromise.

Related concepts include Routing.

Additional Resource: NIST Computer Security Resource Center Glossary.