The CCNA Security certification lays the foundation for job roles such as Network Security Specialist, Security Administrator and Network Security Support Engineer. It is the first step for individuals wishing to obtain their CCSP certification. CCNA Security certifications are valid for three years. The 640-553 Implementing Cisco IOS Network Security (IINS) exam is associated with the CCNA Security certification.

Cisco Certified Network Associate Security (CCNA Security) validates associate-level knowledge and skills required to secure Cisco networks. With a CCNA Security certification, a network professional demonstrates the skills required to develop a security infrastructure, recognise threats and vulnerabilities to networks, and mitigate security threats. The CCNA Security curriculum emphasises core security technologies, the installation, troubleshooting and monitoring of network devices to maintain integrity, confidentiality and availability of data and devices, and competency in the technologies that Cisco uses in its security structure