Staying PCI DSS compliant isn’t a one-time event, it’s an ongoing commitment with activities happening daily, weekly, monthly, quarterly, and annually. Missing just one periodic requirement can result in audit findings, remediation costs, and potential compliance failures.
Whether you’re a merchant managing your own compliance or working with a QSA, understanding the rhythm of PCI DSS is essential. This guide breaks down every periodic activity required by PCI DSS v4.0.1, organized by frequency to help you build a sustainable compliance calendar.
Why Periodic Compliance Matters#
PCI DSS isn’t just about having the right controls in place—it’s about maintaining them continuously. The Payment Card Industry Security Standards Council designed these periodic requirements to ensure:
- Threats are detected promptly (daily log reviews catch breaches early)
- Vulnerabilities are patched quickly (quarterly scans prevent exploitation)
- Controls remain effective (annual reviews ensure policies stay relevant)
- Evidence is audit-ready (regular documentation prevents scrambling)
Let’s dive into each frequency tier, starting with the most frequent activities.
Daily Activities: Your First Line of Defense#
1. Audit Log Reviews (Requirement 10.4.1)#
What: Review security event logs for all critical system components
Scope:
- All security events
- Logs from systems storing, processing, or transmitting cardholder data
- Logs from critical system components (databases, web servers, firewalls)
- Logs from systems performing security functions (IDS/IPS, authentication servers, network security controls)
Why it matters: Most breaches are detected through anomalous log activity. Daily reviews mean you catch intrusions in hours, not months.
Best Practice:
- Use automated log monitoring tools (SIEM systems)
- Define clear alerting thresholds for suspicious activity
- Document who reviewed logs and when
- Escalate anomalies immediately
Documentation needed:
- Log review records (who, what, when)
- Evidence of anomaly investigation
- Escalation procedures followed
Weekly Activities: Proactive Monitoring#
2. Change Detection Reviews (Requirement 11.5.2)#
What: Review change-detection mechanism results for unauthorized modifications to critical files
Frequency: At least once every 7 days
Scope:
- Critical system files
- Configuration files
- Content files on web servers
- Any file that, if modified, could indicate compromise
Why it matters: Attackers often modify system files to maintain persistence. Weekly checks catch tampering before it causes damage.
Best Practice:
- Use file integrity monitoring (FIM) tools
- Baseline your critical files after authorized changes
- Investigate all alerts—don’t ignore “false positives”
- Document authorized vs. unauthorized changes
Common tools: Wazuh, OSSEC, AIDE, or built-in cloud provider solutions
Monthly Activities: Operational Hygiene#
3. Patch Management Review (Requirement 6.3.3)#
What: Install critical security patches within one month of release
Scope:
- All system components in the cardholder data environment (CDE)
- Operating systems
- Applications
- Databases
- Network devices
Why it matters: Unpatched systems are the #1 attack vector. The Equifax breach? Unpatched Apache Struts.
Monthly checklist:
- ☐ Review vendor security bulletins, better yet, subscribe to ThreatIntel feeds
- ☐ Identify critical vulnerabilities (per Requirement 6.3.1 risk ranking)
- ☐ Test patches in non-production environment
- ☐ Deploy to production within 30 days
- ☐ Document deployment dates and exceptions
Exception handling: If patching isn’t feasible, document risk mitigation controls (e.g., virtual patching, network segmentation).
4. User Access Reviews#
What: Review user accounts and access privileges (Requirement 7.2.4)
Frequency: At least once every six months (but many organizations do this monthly for tighter control)
Scope:
- All user accounts (employees, contractors, third-party vendors)
- Related access privileges
- Ensure access remains appropriate for current job function
Why it matters: Job roles change, people leave, privileges accumulate. Regular reviews prevent excessive access.
Monthly best practice (exceeds requirement):
- Review new account creations
- Audit privileged account usage
- Remove accounts for terminated employees (should be immediate per 8.2.5)
- Flag dormant accounts
Quarterly Activities: Vulnerability Management#
5. External Vulnerability Scans (Requirement 11.3.2)#
What: Scans performed by PCI SSC Approved Scanning Vendor (ASV)
Frequency: At least once every three months
Scope:
- All external IP addresses and domains
- Internet-facing systems
- Any system accessible from outside your network
Requirements:
- Must achieve passing scan per ASV Program Guide
- Rescan after fixing vulnerabilities
- Four passing quarterly scans required per year for compliance
Why it matters: External scans identify vulnerabilities attackers can exploit from the internet, your most exposed attack surface.
Pro tip: Don’t wait until the last week of the quarter. Scan early to allow time for remediation and rescans.
ASV coordination:
- Provide accurate scope to ASV
- Schedule scans during low-traffic periods
- Address findings promptly
- Maintain passing scan reports for audit
6. Internal Vulnerability Scans (Requirement 11.3.1)#
What: Scans performed by qualified internal or external personnel
Frequency: At least once every three months
Scope:
- All internal IP addresses
- Systems within the CDE
- Supporting infrastructure
Requirements:
- Vulnerabilities scored 4.0 or higher (CVSS) must be resolved
- Rescan until no high-risk vulnerabilities remain
- Can be performed by internal team (doesn’t require ASV)
Why it matters: Internal scans catch vulnerabilities that wouldn’t be visible externally, including lateral movement risks.
Quarterly checklist:
- ☐ Scan all in-scope systems
- ☐ Prioritize findings by CVSS score
- ☐ Remediate critical and high vulnerabilities
- ☐ Rescan to verify remediation
- ☐ Document results and track trends
7. Wireless Access Point Scans (If Applicable)#
What: Detect unauthorized wireless access points (Requirement 11.2.1)
Frequency: At least once every three months
Scope:
- Entire facility perimeter
- Areas where cardholder data is stored, processed, or transmitted
Why it matters: Rogue wireless access points bypass network security controls and create backdoors.
Methods:
- Wireless scanning tools
- Wireless IDS/IPS
- Physical inspection of network closets
Even if you don’t use wireless: You still need to scan to verify no unauthorized APs exist.
8. Network Security Control Reviews (Requirement 1.2.7)#
What: Review firewall and network security control configurations
Frequency: At least once every six months
What to review:
- Ruleset configurations
- Ensure rules are still relevant and necessary
- Remove unnecessary rules
- Confirm rules align with current business needs
- Verify security features are properly configured
Why it matters: Firewall rules accumulate over time. Regular reviews prevent “rule bloat” and ensure security isn’t degraded.
Semi-annual checklist:
- ☐ Review all firewall rules
- ☐ Identify and remove unused rules
- ☐ Verify least-privilege access (deny by default)
- ☐ Check for overly permissive “any/any” rules
- ☐ Document business justification for each rule
- ☐ Update network diagrams
Semi-Annual Activities: Deep Dives#
9. User Account Reviews (Requirement 7.2.4)#
What: Comprehensive review of all user accounts and privileges
Frequency: At least once every six months
Scope:
- All user accounts
- Privileged accounts
- Third-party/vendor accounts
- Application and system accounts (if they can be used interactively)
Review criteria:
- Is the account still needed?
- Is the access level appropriate for current role?
- Has the employee changed jobs?
- Are there any excessive privileges?
Action items:
- Revoke inappropriate access
- Document management acknowledgment
- Maintain records for audit
Annual Activities: Strategic Reviews#
10. Security Awareness Training (Requirement 12.6.1)#
What: Formal security awareness program for all personnel
Frequency: At least once every 12 months (plus upon hire)
Scope:
- All employees (full-time, part-time, temporary)
- Contractors with access to systems or data
- Third-party vendors with CDE access
Content must include:
- Information security policies and procedures
- Role in protecting cardholder data
- Phishing and social engineering (Requirement 12.6.3.1)
Why it matters: Hackers take advantage of human kindness. Regular training reduces social engineering success rates.
Best practices:
- Make it engaging (not death by PowerPoint)
- Use role-specific scenarios
- Include quiz/assessment (track scores)
- Issue certificates of completion
- Update content annually with new threats
Documentation:
- Training completion records (Compliance %)
- Quiz scores (recommend 80% passing threshold)
- Annual program review and updates
11. Third-Party Service Provider Compliance Review (Requirement 12.8.4)#
What: Monitor TPSPs’ PCI DSS compliance status
Frequency: At least once every 12 months
Scope:
- Payment processors
- Payment gateways
- Hosting providers
- Cloud service providers (IaaS, PaaS, SaaS)
- Any vendor that stores, processes, transmits CHD or impacts CDE security
What to collect:
- Current Attestation of Compliance (AOC)
- ASV scan reports (if applicable)
- Evidence of compliance for services you use
Why it matters: Your compliance depends on your vendors’ compliance. If they fail, you need to know.
Annual vendor review checklist:
- ☐ Request updated AOC or compliance documentation
- ☐ Verify coverage of services you use
- ☐ Review any exceptions or compensating controls
- ☐ Assess changes in services or risk profile
- ☐ Update vendor inventory (Requirement 12.8.1)
- ☐ Confirm written agreements remain current (Requirement 12.8.2)
12. Information Security Policy Review (Requirement 12.1.2)#
What: Review and update all information security policies
Frequency: At least once every 12 months, or when environment changes
Scope:
- Overall information security policy
- All supporting policies and procedures (Requirements 1-12)
- Acceptable use policies
- Incident response plans
Review criteria:
- Are policies still accurate and relevant?
- Have there been changes to business objectives?
- Have there been changes to risk environment?
- Are new threats addressed?
- Do policies reflect current PCI DSS requirements?
Update triggers (don’t wait for annual review):
- Regulatory changes (e.g., PCI DSS v4.0.1 updates)
- New business processes
- Security incidents
- Technology changes
- Merger/acquisition
13. Incident Response Plan Testing (Requirement 12.10.7)#
What: Test incident response plan to ensure effectiveness
Frequency: At least once every 12 months
Testing methods:
- Tabletop exercises (walk through scenarios)
- Simulations (more realistic, hands-on)
- Full-scale drills (activate actual procedures)
What to test:
- Detection and notification procedures
- Roles and responsibilities clarity
- Communication and escalation paths
- Evidence preservation
- Business recovery procedures
- Lessons learned process
Why it matters: The time to discover your incident response plan doesn’t work is NOT during an actual breach.
Post-test actions:
- Document findings and gaps
- Update plan based on lessons learned
- Train personnel on changes
- Schedule next year’s test
14. Penetration Testing (Requirement 11.4.3)#
What: External penetration testing of CDE perimeter
Frequency:
- At least once every 12 months
- After any significant infrastructure or application upgrade/change
Scope:
- CDE perimeter
- Critical systems
- Both network-layer and application-layer testing
Requirements:
- Must use defined methodology (Requirement 11.4.1)
- Performed by qualified internal resource or external third-party
- Organizational independence of tester required (can’t test your own work)
- Exploitable vulnerabilities must be corrected and retested (Requirement 11.4.4)
Why it matters: Scans find vulnerabilities; pentests prove they can be exploited. You need both.
15. Segmentation Testing (Requirement 11.4.5)#
What: Penetration tests on segmentation controls
Frequency:
- At least once every 12 months
- After any changes to segmentation controls/methods
Scope:
- All segmentation controls/methods in use
- Verify CDE is isolated from out-of-scope systems
- Confirm effectiveness of isolation for systems with different security levels
Why it matters: Segmentation reduces scope—but only if it actually works. Failed segmentation = entire network in scope.
Testing confirms:
- Segmentation is operational
- Segmentation is effective
- CDE is isolated from all out-of-scope systems
- No unauthorized paths exist between zones
Who performs:
- I recommend an external party to perform the testing to ensure impartiality
- Organizational independence required, going with an 3rd party will ensure there’s no mistake
16. Targeted Risk Assessments (Requirement 12.3.1)#
What: Targeted risk analysis for specific requirements where PCI DSS allows entity-defined frequencies
Frequency:
- At least once every 12 months
- When needed to determine requirement-specific frequencies
Applies to: Requirements that allow entity-defined frequencies based on risk
PCI DSS v4.0 introduced the concept of Targeted Risk Analysis (TRA) as a replacement for the old v3.2.1 general risk assessment. Instead of a single enterprise-wide risk assessment that may have had nothing to do with your actual payment environment (we’ve all seen those), TRAs are focused, requirement-specific analyses that justify how often you perform certain controls.
Each TRA is a separate exercise — one per applicable requirement. Your QSA will expect to see individual TRAs, not a single document covering everything.
The complete list of TRA-driven periodic activities:
| Req. | Activity | What You’re Defining |
|---|---|---|
| 5.2.3.1 | Anti-malware evaluations | How often you evaluate system components not typically at risk for malware |
| 5.3.2.1 | Periodic malware scans | Scan frequency if you use periodic scans (vs. real-time) |
| 7.2.5.1 | Application/system account access reviews | How often you review privileges for application and system accounts |
| 8.6.3 | Password/passphrase changes for application and system accounts | How often passwords/passphrases are changed (if they can be used interactively) |
| 9.5.1.2.1 | POI device inspections | How often you inspect point-of-interaction terminals for tampering |
| 10.4.2.1 | Log reviews for non-critical systems | How often you review logs for systems not covered by the daily review requirement |
| 11.3.1.1 | Remediation of lower-risk vulnerabilities | Timeframe for addressing vulnerabilities that don’t score as high/critical |
| 11.6.1 | Payment page change/tamper detection | How often you check for unauthorized modifications to payment pages and HTTP headers (default: at least every 7 days) |
| 12.10.4.1 | Incident response personnel training | How often your IR team receives training beyond the annual minimum |
Risk analysis must include:
- Identification of assets being protected
- Identification of threats the requirement protects against
- Likelihood and impact factors
- Analysis determining how defined frequency minimizes risk
- Annual review to confirm analysis remains valid
Why it matters: PCI DSS v4.0 introduced flexibility — but flexibility without documentation is noncompliance. You must justify your risk-based decisions, and “we’ve always done it that way” isn’t a justification.
🔑 Key point: A TRA can only be used to define the frequency where PCI DSS doesn’t prescribe one. You can’t use a TRA to perform an activity less frequently than a requirement already states. If the standard says quarterly, it’s quarterly — no TRA will change that.
TRA Activities by SAQ Type: What Applies to You?#
One of the most common questions I get is: “Which TRAs do I actually need to complete for my SAQ?” The answer depends entirely on your SAQ type, because each SAQ only includes a subset of the full PCI DSS requirements. Here’s the breakdown:
SAQ A (Card-Not-Present, Fully Outsourced)#
SAQ A merchants have the lightest TRA burden. With v4.0.1 updates (January 2025), Requirements 6.4.3, 11.6.1, and the associated TRA for 12.3.1 related to 11.6.1 were removed from SAQ A — provided you meet the new eligibility criteria confirming your entire site is secured against script-based attacks.
Applicable TRAs: Minimal to none. SAQ A doesn’t include most of the requirements that drive TRA obligations. Focus on ensuring your TPSPs maintain their compliance and that your site meets the new eligibility criteria.
SAQ A-EP (E-Commerce with Payment Page Impact)#
SAQ A-EP merchants have a significantly larger scope than SAQ A. Because you control how customers are redirected to payment pages, several TRA-driven requirements come into play.
Applicable TRAs:
- 5.2.3.1 — Anti-malware evaluation frequency for your web servers
- 5.3.2.1 — Malware scan frequency (if using periodic scans)
- 10.4.2.1 — Log review frequency for non-critical systems
- 11.3.1.1 — Remediation timeframes for lower-risk vulnerabilities
- 11.6.1 — Payment page change/tamper detection frequency
- 12.10.4.1 — Incident response training frequency
SAQ B (Imprint Machines / Standalone Dial-Out Terminals)#
SAQ B has a very narrow scope. Most TRA requirements don’t apply because these merchants aren’t running systems that need malware scans, log reviews, or vulnerability management.
Applicable TRAs:
- 9.5.1.2.1 — POI device inspection frequency (the big one for brick-and-mortar)
SAQ B-IP (Standalone PTS-Approved Payment Terminals with IP)#
Similar to SAQ B but with IP-connected terminals, adding a few more considerations.
Applicable TRAs:
- 9.5.1.2.1 — POI device inspection frequency
- 11.3.1.1 — Remediation timeframes for lower-risk vulnerabilities (your terminals are network-connected)
SAQ C (Payment Application Systems Connected to the Internet)#
SAQ C merchants run Internet-connected payment applications, which brings a wider set of security controls into scope.
Applicable TRAs:
- 5.2.3.1 — Anti-malware evaluation frequency
- 5.3.2.1 — Malware scan frequency (if using periodic scans)
- 8.6.3 — Application/system account password change frequency
- 9.5.1.2.1 — POI device inspection frequency
- 10.4.2.1 — Log review frequency for non-critical systems
- 11.3.1.1 — Remediation timeframes for lower-risk vulnerabilities
- 12.10.4.1 — Incident response training frequency
SAQ C-VT (Virtual Terminals Only)#
Virtual terminal merchants have a moderate scope. The isolated computing device requirement limits exposure, but TRAs still apply to several controls.
Applicable TRAs:
- 5.2.3.1 — Anti-malware evaluation frequency
- 5.3.2.1 — Malware scan frequency (if periodic scans are in use)
- 8.6.3 — Application/system account password change frequency
- 12.10.4.1 — Incident response training frequency
SAQ D-Merchant / SAQ D-Service Provider (Full Scope)#
SAQ D covers all PCI DSS requirements. Every TRA-driven requirement applies. If you’re completing SAQ D, you need a TRA for each of the nine requirements listed in the table above. This is the most documentation-heavy path, so plan accordingly.
Applicable TRAs: All nine — 5.2.3.1, 5.3.2.1, 7.2.5.1, 8.6.3, 9.5.1.2.1, 10.4.2.1, 11.3.1.1, 11.6.1, and 12.10.4.1.
Quick Reference: TRA Requirements by SAQ#
| TRA Requirement | A | A-EP | B | B-IP | C | C-VT | D |
|---|---|---|---|---|---|---|---|
| 5.2.3.1 (Malware evaluations) | ✅ | ✅ | ✅ | ✅ | |||
| 5.3.2.1 (Periodic malware scans) | ✅ | ✅ | ✅ | ✅ | |||
| 7.2.5.1 (App/system account reviews) | ✅ | ||||||
| 8.6.3 (Account password changes) | ✅ | ✅ | ✅ | ||||
| 9.5.1.2.1 (POI device inspections) | ✅ | ✅ | ✅ | ✅ | |||
| 10.4.2.1 (Non-critical log reviews) | ✅ | ✅ | ✅ | ||||
| 11.3.1.1 (Lower-risk vuln remediation) | ✅ | ✅ | ✅ | ✅ | |||
| 11.6.1 (Payment page monitoring) | ✅ | ✅ | |||||
| 12.10.4.1 (IR training frequency) | ✅ | ✅ | ✅ | ✅ |
Note: SAQ A’s TRA obligations were significantly reduced with the January 2025 v4.0.1 SAQ update. SAQ SPoC and SAQ P2PE aren’t included above — consult the specific SAQ documents for those types. Always verify against the latest SAQ version from the PCI SSC Document Library, as updates do occur.
💡 Practical tip: Don’t overthink the TRA format. The PCI SSC published a sample template (PCI DSS v4.x Sample Template: TRA for Activity Frequency) available in their Document Library. It’s not required that you use their template, but you must cover all elements described in Requirement 12.3.1. Keep each TRA concise, justified, and specific to the requirement. A two-page TRA that clearly articulates the risk is better than a 20-page document that says nothing.
17. Annual PCI DSS Assessment#
What: Self-Assessment Questionnaire (SAQ) or Report on Compliance (ROC)
Frequency: At least once every 12 months
Assessment types:
- SAQ A: Card-not-present, fully outsourced
- SAQ A-EP: E-commerce with payment page impact
- SAQ B: Imprint machines or standalone dial-out terminals only
- SAQ B-IP: Standalone, PTS-approved payment terminals
- SAQ C: Payment application systems only, no electronic storage
- SAQ C-VT: Virtual terminals only
- SAQ D-Merchant: All other merchants
- SAQ D-Service Provider: All service providers not eligible for SAQ
- ROC: Required for Level 1 merchants and all service providers
Assessment includes:
- Review of all 12 PCI DSS requirements
- Evidence collection for all applicable controls
- Compensating controls documentation (if applicable)
- Attestation of Compliance (AOC) completion
- Executive sign-off
Why it matters: This is your formal compliance validation. Without it, you’re not PCI compliant—period.
Timeline planning:
- Start 90-120 days before your compliance deadline
- Allow time for remediation if gaps are found
- Don’t procrastinate—assessments take longer than you think
Continuous Activities: Always On#
18. Change Control (Requirement 6.5.1)#
What: Manage all system changes according to established procedures
Frequency: Continuous (every time a change occurs)
Applies to:
- All changes to system components in production
- Configuration changes
- Application updates
- Infrastructure modifications
Required change control elements:
- Documented reason and description
- Security impact documentation
- Approval by authorized parties
- Testing to verify no adverse security impact
- Compliance testing for custom software (Requirement 6.2.4)
- Rollback procedures
Why it matters: Uncontrolled changes are how breaches happen. Rigorous change control prevents “oops” moments.
19. Access Provisioning & Deprovisioning#
What: Grant and revoke access based on business need
Frequency: Continuous
Key requirements:
- New access: Authorized before granted (Requirement 8.2.4)
- Terminations: Access revoked immediately (Requirement 8.2.5)
- Changes: Modified based on role changes
- Temporary access: Time-limited and well-controlled
Why it matters: Every minute a terminated employee retains access is a minute they could cause damage.
20. Security Monitoring (Requirements 10.x and 11.5.1)#
What: Continuous monitoring for security events and intrusions
Frequency: Continuous (24/7/365)
Includes:
- Intrusion detection/prevention system monitoring
- Log aggregation and alerting (SIEM)
- File integrity monitoring
- Network traffic analysis
- Anomaly detection
Why it matters: Breaches happen outside business hours. Continuous monitoring ensures 24/7 protection.
Alert response:
- Define thresholds for automatic alerts
- Escalation procedures for after-hours
- Investigate all alerts promptly
- Document investigation results
Building Your PCI DSS Compliance Calendar#
Now that you understand every periodic requirement, here’s how to operationalize them:
Sample Annual Calendar#
Daily:
- Review security event logs (10.4.1)
Weekly:
- Review file integrity monitoring alerts (11.5.2)
Monthly:
- Review and deploy critical security patches (6.3.3)
- Review new user account creations (optional, exceeds requirement)
Quarterly:
- ASV external vulnerability scans (11.3.2)
- Internal vulnerability scans (11.3.1)
- Wireless access point detection (11.2.1, if applicable)
Semi-Annually (Every 6 Months):
- Network security control reviews (1.2.7)
- User account and access reviews (7.2.4)
Annually:
- Security awareness training (12.6.1)
- TPSP compliance reviews (12.8.4)
- Policy reviews (12.1.2)
- Incident response plan testing (12.10.7)
- External penetration testing (11.4.3)
- Segmentation testing (11.4.5, if applicable)
- Targeted risk assessments (12.3.1) — review and update all TRAs applicable to your SAQ type
- PCI DSS assessment (SAQ/ROC)
TRA-Defined (frequency set by your risk analysis):
- Anti-malware evaluations for low-risk systems (5.2.3.1)
- Periodic malware scans (5.3.2.1)
- Application/system account access reviews (7.2.5.1)
- Application/system account password changes (8.6.3)
- POI device tampering inspections (9.5.1.2.1)
- Log reviews for non-critical systems (10.4.2.1)
- Lower-risk vulnerability remediation (11.3.1.1)
- Payment page change/tamper detection (11.6.1)
- Incident response personnel training (12.10.4.1)
Continuous:
- Change control (6.5.1)
- Access management (8.2.4, 8.2.5)
- Security monitoring (10.x, 11.5.1)
Tips for Staying on Track#
1. Use Project Management Tools#
- Microsoft Project, Asana, Monday.com, or even Excel
- Set recurring tasks with email reminders
- Assign ownership for each activity
- Track completion status
2. Build Buffer Time#
Don’t schedule quarterly scans for the last week of the quarter. Things go wrong. Allow:
- 2-3 weeks for scan/rescan cycles
- 30-60 days for penetration testing (finding remediation, retest)
- 90 days for annual assessments
3. Document Everything#
You didn’t do it if you can’t prove it. Maintain:
- Evidence of completion (screenshots, reports, sign-offs)
- Investigation results for anomalies
- Remediation tracking for vulnerabilities
- Justifications for risk-based decisions
4. Automate Where Possible#
- SIEM for log reviews (10.4.1.1 will require this soon)
- Automated vulnerability scanning
- Change detection alerts
- Training assignment workflows
- Compliance dashboard reporting
5. Designate Clear Ownership#
Every periodic activity needs an owner:
- Who is responsible?
- Who reviews their work?
- Who escalates if something is found?
- Who maintains documentation?
6. Plan for the Unexpected#
Build contingency into your calendar:
- Staff turnover (cross-train personnel)
- Tool failures (have backup methods)
- High-severity findings (emergency response procedures)
- Audit requests (evidence must be readily available)
Common Pitfalls to Avoid#
“We’ll catch up next quarter”#
Missing one quarter’s scans means you don’t have four passing scans for the year—instant audit failure.
“That system isn’t critical”#
If it’s in scope, it has requirements. There’s no “mostly compliant.”
“We’re too busy right now”#
PCI DSS doesn’t pause for busy seasons. Build compliance into business-as-usual operations.
“The vendor handles that”#
Even if true, you must verify and document vendor compliance annually (12.8.4).
“Nobody checks the dates”#
Auditors absolutely check dates. Late or missing evidence = finding.
Post-Assessment: Maintaining Compliance#
Getting compliant is hard. Staying compliant is harder.
After your annual assessment:
- ✅ Address any findings immediately
- ✅ Update your calendar for next year
- ✅ Review what went well and what didn’t
- ✅ Adjust resource allocation if needed
- ✅ Keep evidence organized (don’t scramble next year)
Remember: Compliance is a journey, not a destination. The periodic requirements aren’t bureaucratic busywork—they’re the heartbeat of a secure payment environment.
Getting Started#
If managing all these periodic requirements feels overwhelming, you’re not alone. Many organizations benefit from working with a qualified security assessor company (QSAC) that can provide gap assessments, readiness reviews, and ongoing compliance support.
Quick Reference: PCI DSS v4.0.1 Periodic Activities#
| Frequency | Requirement | Activity |
|---|---|---|
| Daily | 10.4.1 | Security event log reviews |
| Weekly | 11.5.2 | File integrity monitoring reviews |
| Monthly | 6.3.3 | Critical patch installation (within 30 days) |
| Quarterly | 11.3.2 | ASV external vulnerability scans |
| Quarterly | 11.3.1 | Internal vulnerability scans |
| Quarterly | 11.2.1 | Wireless access point detection |
| Semi-Annual | 1.2.7 | Network security control reviews |
| Semi-Annual | 7.2.4 | User account access reviews |
| Annual | 12.6.1 | Security awareness training |
| Annual | 12.8.4 | TPSP compliance reviews |
| Annual | 12.1.2 | Policy reviews |
| Annual | 12.10.7 | Incident response testing |
| Annual | 11.4.3 | External penetration testing |
| Annual | 11.4.5 | Segmentation testing (if applicable) |
| Annual | 12.3.1 | Targeted risk assessments (review/update all TRAs) |
| Annual | — | PCI DSS assessment (SAQ/ROC) |
| TRA-Defined | 5.2.3.1 | Anti-malware evaluations (low-risk systems) |
| TRA-Defined | 5.3.2.1 | Periodic malware scans |
| TRA-Defined | 7.2.5.1 | Application/system account access reviews |
| TRA-Defined | 8.6.3 | Application/system account password changes |
| TRA-Defined | 9.5.1.2.1 | POI device tampering inspections |
| TRA-Defined | 10.4.2.1 | Log reviews for non-critical systems |
| TRA-Defined | 11.3.1.1 | Lower-risk vulnerability remediation |
| TRA-Defined | 11.6.1 | Payment page change/tamper detection |
| TRA-Defined | 12.10.4.1 | Incident response personnel training |
| Continuous | 6.5.1 | Change control |
| Continuous | 8.2.4, 8.2.5 | Access provisioning/deprovisioning |
| Continuous | 10.x, 11.5.1 | Security monitoring |
Last updated: February 2026 for PCI DSS v4.0.1
