PCI DSS Requirement 5: Protect Systems & Networks from Malware
Blog post from Basis Theory
Malware is software designed to damage systems or bypass security controls, with threats including viruses, ransomware, spyware, keyloggers, and phishing-delivered code that can enter organizations through email, web use, removable media, and exploited vulnerabilities. PCI DSS Requirement 5 addresses these risks through four areas: documenting and assigning security policies and responsibilities; deploying anti-malware protections on at-risk systems while periodically reassessing exemptions; keeping protections updated, continuously or periodically scanning systems and removable media, retaining logs, and restricting unauthorized disabling of controls; and implementing automated processes to detect and protect personnel from phishing, potentially using DMARC, SPF, and DKIM. The material also states that Basis Theory, a PCI Level 1 compliant provider, offers a platform intended to help organizations secure and tokenize cardholder data while reducing the scope, cost, and operational burden of PCI DSS compliance, though readers are directed to the PCI Security Standards Council for authoritative and current requirements.
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