PCI DSS and File Integrity Monitoring Explained
Although FIM or File-Integrity Monitoring is only mentioned specifically in two sub-requirements of the PCI DSS (10.5.5 and 11.5), it is actually one of the more important measures in securing business systems from card data theft.
This whitepaper explains what the three main dimensions of file integrity monitoring are and how to ensure you have them covered with the minimum of expense and time.
NNT Whitepaper: PCI DSS File Integrity Monitoring Explained