PCI DSS 5.3.1: Maintain Current Anti-Malware via Automatic Updates
Anti-malware solutions are only effective when they're current. PCI DSS 5.3.1 requires automatic updates to ensure your defenses protect against the latest threats. Learn how to implement and verify this critical control across your card data environment.
What this means
This control mandates that all anti-malware software deployed to protect cardholder data environment systems receives automatic updates without manual intervention. Automatic updates ensure threat definitions, detection engines, and security patches stay current in real-time, eliminating the risk of gaps between vulnerability discovery and remediation.
How to comply
- 1.Configure all anti-malware solutions to enable automatic definition and engine updates by default
- 2.Verify automatic update settings are enforced at the organizational level rather than user-configurable
- 3.Document your anti-malware update policy including frequency (typically hourly or as released)
- 4.Test automatic update functionality quarterly to confirm updates deploy successfully
- 5.Establish monitoring and alerting for failed update attempts across all protected systems
- 6.Maintain audit logs showing update timestamps and results for compliance evidence
- 7.Review anti-malware vendor update release notes to understand threat coverage improvements
- 8.Schedule updates during maintenance windows if necessary, but limit the gap between releases and deployment
Evidence auditors look for
- Anti-malware console screenshots showing automatic update configuration enabled
- Audit logs documenting successful definition updates across all systems
- Policy documentation specifying automatic update requirements and deployment frequency
- Update history reports from anti-malware management platform covering the assessment period
- Network traffic captures showing automatic update connections to vendor repositories
- System event logs confirming update completion and timing on sampled endpoints
- Quarterly test results validating automatic update functionality
- Configuration baseline documentation for approved anti-malware update settings
Frequently asked questions
When will FAQs be available?
The FAQ for this control is currently being prepared.
GRCWatch automates anti-malware update compliance verification by continuously monitoring your endpoint protection platform configurations and generating audit-ready reports showing automatic update status across all systems.
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