Crytica’s RDAi Detects OT Device Tampering from Within
What Happened – Crytica Security launched its Rapid Detection, Alert, and Isolation (RDAi) platform, a sub‑100 KB “probe” that lives inside operational‑technology (OT) devices. The probe continuously monitors instruction‑set integrity and configuration files, generating deterministic alerts and immutable evidence whenever an unauthorized change is detected, all without interrupting device operation.
Why It Matters for Compliance & Audit Readiness
- Provides concrete, tamper‑evident logs that satisfy SOC 2 CC6.1 (System Operations) and CC7.1 (Change Management) requirements for continuous monitoring and evidence of control effectiveness.
- Enables organizations to demonstrate due‑diligence in protecting critical OT assets, a key component of the SOC 2 Trust Services Criteria for Security and Availability.
- Supplies audit‑ready data that can be fed into continuous‑compliance dashboards, reducing manual evidence collection during SOC 2 assessments.
Who Is Affected – Operators of critical infrastructure, utilities, healthcare facilities, and federal agencies that rely on OT devices for essential services.
Recommended Actions –
- Map OT integrity monitoring to SOC 2 CC6.1 and CC7.1 controls in your compliance framework.
- Integrate RDAi alert logs into your existing SIEM/XDR to create a continuous, auditable evidence trail.
- Update change‑management policies to require deterministic verification of any firmware or configuration change.
- Conduct a gap analysis of current OT visibility versus Crytica’s internal‑probe approach.
Source: Help Net Security – Crytica’s RDAi detects OT device tampering from within
Technical Notes – RDAi installs a lightweight agent inside each protected device, monitors instruction‑set integrity (iNSiM), and records any deviation as immutable evidence. No CVE or known vulnerability is exploited; the solution addresses the detection gap where external monitoring cannot verify a device’s trusted state.