Definition
Infrastructure and Application Security refers to the comprehensive set of practices and controls designed to protect both the underlying IT infrastructure and the software applications running on it from cyber threats. It involves securing networks, servers, cloud environments, operating systems, and the code developed for applications. This security is implemented through a combination of technical measures like firewalls and encryption, as well as administrative policies and procedures. Adopting robust infrastructure and application security is crucial for maintaining business continuity, protecting sensitive data, and ensuring regulatory compliance. For instance, securing a web server with regular patching and access controls prevents unauthorized data breaches. Unlike general IT security, it specifically addresses the distinct vulnerabilities of both hardware/network components and software code. This concept is a core component of certifications such as CompTIA Security+, CySA+, and CISSP.