: Many organizations treat PCI DSS as an annual "point-in-time" event rather than a continuous process. This leads to "drifting" where security controls, including FIM, are not actively managed between audits.

: Effective FIM requires skilled personnel to tune policies and investigate alerts. A lack of cybersecurity talent often results in poorly optimized infrastructure that fails to provide actionable insights. PCI DSS and File Integrity Monitoring

: A primary failure is treating FIM as a standalone "checkbox" rather than integrating it with formal change management. Without this link, every authorized patch or update triggers a false positive.