The 6-Step Roadmap to Seamless PCI DSS v4.0 Compliance

Safeguard Cardholder Data, Minimize Compliance Risks 

With the March 31, 2025 deadline for PCI DSS v4.0 compliance fast approaching, organizations must act now to protect cardholder data, maintain compliance, and minimize risk. While many teams focus on email security, collaboration tools such as Slack, Microsoft Teams, and Zoom remain unprotected, putting sensitive data at risk. 

Failure to comply doesn’t only risk fines of up to $100,000 per month but also increases vulnerabilities to cyberattacks and reputational damage. For example, these platforms have become prime targets for insider threats, data leaks and AI-powered risks like DeepSeek. Mimecast simplifies compliance, securing all communication platforms and enabling businesses to meet PCI DSS v4.0 standards with ease. 

PCI DSS Compliance Checklist 

The updated PCI DSS v4.0 requirements highlight the need for securing and governing all channels where sensitive data is shared. Use this checklist to prepare your business: 

1. Scope: Identify system components and networks involved in storing, processing, or transmitting cardholder data. 
2. Assess: Conduct a thorough assessment of compliance for all system components, including overlooked collaboration tools. For example, use a record checker tool to assess your DMARC policy readiness.
3. Report: Document compliance efforts using the Self-Assessment Questionnaire (SAQ) or Report on Compliance (ROC). 
4. Attest: Fill out the Attestation of Compliance (AOC) to confirm your compliance status.  
5. Submit: Submit required documentation, including SAQ, ROC, AOC, and supporting materials, like ASV scan reports, to the appropriate entities.
6. Remediate: Address deficiencies, implement necessary changes, and submit an updated compliance report where required. 

Close Compliance Gaps with Mimecast 

Most businesses focus on email security but leave communication platforms like Teams, Slack, and Zoom vulnerable to data breaches. But since 1 in 17 messages in collaboration tools contain sensitive data, the fast-approaching PCI DSS 4.0 requirements don't just cover email - they mandate protection across all communications platforms.  

Mimecast’s unified compliance solutions provide seamless governance and security for all communication channels, allowing you to meet PCI DSS v4.0 requirements efficiently. 

Request a demo today to safeguard your organization and take the stress out of compliance.