OTIFYD OT Asset Inventory is a professional service that identifies, catalogues, and documents all operational technology (OT) assets within an organisation's industrial network. The service covers physical devices and equipment such as programmable logic controllers (PLCs), human-machine interfaces (HMIs), and other industrial control systems (ICS). The discovery process uses non-intrusive methods to avoid disrupting production operations, employing techniques such as network scanning with industrial protocols (Modbus, DNP3), passive network traffic monitoring, and active probing methods including device fingerprinting and service identification. Key deliverables from the service include: - Asset List: A comprehensive record of all assets with details such as type, location, manufacturer, model, and serial number - Asset Map: A visual diagram of the industrial network showing asset locations and interconnections - Vulnerability Assessment: A risk assessment identifying and prioritising vulnerabilities and threats - Configuration Management: Documentation of asset configurations and settings as a baseline for future assessments - Maintenance Plan: A structured plan for ongoing maintenance and upgrades - Compliance Documentation: Records demonstrating adherence to standards such as NIST SP 800-82 and IEC 62443 - Training Material: Documentation and training content for operators and maintenance personnel The service is positioned to support security posture improvement, regulatory compliance, operational efficiency, obsolescence management, and informed decision-making around OT infrastructure investments.