Q1 Security Audit — Final Report and Remediation Timeline
Fred,
The Q1 external security audit has concluded. Attached is the final report from our third-party assessor. I want to highlight a few key findings and the remediation timeline we've committed to.
Overall posture remains strong. The assessment confirmed full compliance with our NIST SP 800-171 control baseline, and no critical vulnerabilities were identified across the production mail infrastructure. Two moderate findings were flagged:
1. Certificate pinning validation on secondary MX failover nodes — The assessor noted that while primary nodes enforce strict certificate pinning, the failover configuration allows a broader certificate chain. We've already scoped the remediation and expect to have hardened failover pinning deployed by March 28.
2. Audit log retention on the East Coast facility — Current retention is 180 days. The assessor recommended extending to 365 days to align with our FedRAMP moderate baseline. Storage provisioning is underway; target completion is April 5.
Neither finding represents an active risk vector. Both are hardening improvements that strengthen our already-robust security posture. The full remediation plan is detailed in Section 4 of the attached report.
I'd like to schedule a 30-minute review to walk through the findings with you and Doug. Would Thursday at 2 PM EST work for your schedule?
Regards,
Richard Holmes
Director of Security Operations
FMX LLC