Redbot Security ICS/SCADA & OT Network Testing is a manual, senior-engineer-led penetration testing service targeting industrial control systems (ICS), SCADA, and operational technology (OT) networks within critical infrastructure environments. The service is structured around two primary frameworks: the Purdue Enterprise Reference Architecture (mapping OT/IT ecosystems across Levels 0–4) and NIST Special Publication 800-82 (U.S. government guide to OT security). The testing methodology consists of five phases: 1. Architectural Discovery & Mapping – Builds a layered inventory aligned with the Purdue model, identifying data flows and trust boundaries across conduits where adversaries may traverse. 2. Segmentation & Conduit Validation – Tests firewalls, DMZs, vendor tunnels, and remote access paths to assess whether systems are truly isolated or vulnerable to lateral movement. 3. Protocol & Control-Plane Testing – Manually tests critical ICS protocols and control devices, including Modbus, DNP3, OPC/UA, and EtherNet/IP, to verify whether attackers could move from enterprise IT into process control environments. 4. Threat Modeling & Exploitation – Simulates realistic adversary paths from IT compromise to OT impact, guided by NIST risk principles. 5. Reporting & Remediation Road-map – Delivers proof-of-concept findings, prioritized remediation tied to process and physical impact, and realistic timelines that account for maintenance windows and regulatory constraints. All testing is performed exclusively by senior U.S.-based engineers. The service targets operators of critical infrastructure such as utilities, industrial facilities, and public-safety-dependent systems.