Maintain a Vulnerability Management Program

3.1 Protect all systems against malware and regularly update antivirus software or programs.

Requirement 3.1 focuses on the importance of safeguarding all systems within an organization from malware. Malware is malicious software designed to cause damage to a computer network or gain unauthorized access. Types of malware include viruses, worms, ransomware, spyware, and more. Organizations should deploy antivirus solutions on all systems that are commonly affected by malware. These solutions should be kept current, actively running, and incapable of being disabled or altered by users, unless specifically authorized by management on a case-by-case basis for a limited time period. Regularly updating these software programs ensures they have the latest virus signatures and can detect and prevent the most recent threats.

3.2 Develop and maintain secure systems and applications.

Requirement 3.2 emphasizes the necessity for secure development and ongoing maintenance of systems and applications. Security needs to be considered and implemented throughout the entire lifecycle of systems and applications. This includes adopting secure coding practices to avoid common coding vulnerabilities, conducting thorough code reviews, and implementing rigorous testing procedures before deployment.

This requirement also encompasses the practice of patch management. Software vendors often release updates or patches to fix known security vulnerabilities in their products. Organizations need a process to identify, verify, test, and install these patches in a timely manner. This practice ensures their systems and applications remain secure against known vulnerabilities.

By adhering to these requirements, organizations can protect their systems and data against potential malware attacks and other security threats, reducing the likelihood of a data breach.