What is the main focus of Requirement 5 in security practices?

Requirement 5 in security practices specifically focuses on protecting all systems against malware and ensuring that anti-virus software is regularly updated. This requirement is critical because malware presents a significant risk to the integrity, confidentiality, and availability of information systems. Keeping anti-virus software updated is essential to defend against emerging threats, as new malware and variants are constantly developed. Regular updates ensure that the protection mechanism remains effective against the latest vulnerabilities and attacks.

This requirement emphasizes proactive measures and continuous monitoring to safeguard against malware invasions, which can compromise sensitive data and disrupt operations. It encompasses not only the installation of anti-virus solutions but also the establishment of processes for maintaining and verifying their efficacy over time. Thus, the core intention is to create a resilient defense against increasingly sophisticated malware, which includes not only traditional viruses but also worms, Trojans, and various forms of ransomware.