Introducing File Integrity Monitoring
Released on: April 2026Atatus File Integrity Monitoring (FIM) tracks every file creation, modification, permission update, and deletion across your infrastructure in real time. Detect suspicious activity with risk scores, complete before-and-after diffs, and detailed user and process attribution before unauthorized changes turn into security incidents.
Built directly into the Atatus SIEM & Audit Trail platform, FIM combines sub-second detection latency with 800+ MITRE ATT&CK–mapped detection rules and on-demand compliance reporting for SOC 2, PCI-DSS, HIPAA, and ISO 27001. Security, compliance, and DevOps teams get a centralized forensic-grade view of every file event across their environment.
Key Features of File Integrity Monitoring in Atatus
- Real-Time File Change Detection: Monitor file creation, modification, deletion, and permission changes across servers, containers, and cloud hosts with sub-second detection speed. Capture timestamps, usernames, processes, hosts, and SHA256 hashes for every event in real time.
- Rich Event Detail with Before/After Diff: Investigate file integrity events with complete field-level diffs including permissions, ownership, file size, and SHA256 hash changes. Every event includes a risk score and suspicious activity indicator for faster triage.
- 800+ Built-in MITRE ATT&CK Detection Rules: Deploy with 800+ prebuilt detection rules covering brute force attacks, privilege escalation, credential access, persistence techniques, and more. Every rule is mapped to MITRE ATT&CK with severity levels, categories, and detection methods. Customize existing rules or create your own without proprietary query languages.
- Powerful Filtering & Search: Filter events by severity, hostname, user, change type, or file path in seconds. Use full-text search across event metadata and analyze activity across flexible time ranges from minutes to months for faster forensic investigations.
- Compliance Reporting for SOC 2, PCI-DSS, HIPAA & ISO 27001: Generate audit-ready compliance reports and evidence packs mapped to major regulatory frameworks. Continuously monitor control drift and receive proactive alerts before compliance gaps become audit findings.
- FIM Dashboard & Analytics: Visualize file activity trends, frequently modified files, change type distributions, and host-level event timelines through a dedicated FIM dashboard designed for rapid operational visibility and investigation.
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