Learn NIST800-82 Risk Management Framework OT Security Part2

Identify the essential assets, users, and risks in your computer and network ecosystems, and map protections against digital threats and attacks. Understand what to protect and who uses them.

Track and manage assets with unique identifiers, conduct hardware and software inventories, and map data flows and network architecture to support accurate OT risk management.

Map data flows in the OT network using data flow diagrams to visualize north-south and east-west traffic, enabling troubleshooting, recovery, and forensic analysis with automated solutions.

Learn to create and maintain network architecture documentation from asset management, detailing device manufacturers, interconnections, and external connections to support threat modeling, risk assessment, segmentation, and cybersecurity controls.

Leadership drives risk management through governance by providing resources, establishing security requirements, policies, and roles, coordinating IT and OT security, and ensuring compliance with legal/regulatory requirements across the OT lifecycle.

Learn to conduct ongoing risk assessment in OT by identifying, evaluating, and managing safety, financial, environmental, and business risks, using past incidents, asset management, and threat intelligence to update safeguards.

Define a uniform risk management strategy that sets risk tolerances, tailors risk tolerance to sector-specific critical infrastructure, guides risk assessment methodologies, and enables continuous monitoring for informed, risk-based decisions.

Secure your OT supply chain by tracking components, vetting vendors, and monitoring vulnerabilities. Implement software bill of materials, 62443 certification, and blockchain traceability to prevent counterfeit parts and tampering.

Finish the current topic and move toward the next topic as the lesson nears completion.

Protect step in cybersecurity mirrors locking a house to safeguard OT assets and plant information. Use passwords, training, badges, and encryption to deter data theft.

Learn how identity management and access control establish and manage credentials for users, devices, and services, verify identities, enforce authorization rules, and balance risk through credential lifecycle and emergency access.

Implement logical access controls, including ACLs, firewalls, RBAC, and ABAC, to govern who can access digital assets by IP, host, or role, ensuring OT safety and reliability.

Strengthen physical access controls for OT facilities by securing perimeters, cabinets, and housing, with surveillance and asset tracking. Ensure secure device checks before connections and limit control center access.

Segment networks into physical and logical zones with firewalls and VLANs to contain breaches in an OT defense-in-depth framework. Enforce compliance and deny-all defaults; use secure protocols for cross-zone traffic.

The lecture outlines user, device, and asset authentication methods, including physical tokens, smartcards, RFID and biometric systems, plus dual-factor options and password security practices for industrial environments.

Implement role-based awareness and training for OT staff, tailoring content from executives to technicians and covering social engineering, anomaly detection, safe network practices, password management, and incident reporting.

Protect data by safeguarding confidentiality, integrity, and availability across rest and transit; implement cryptography, encryption, and robust key management, while securing storage, access controls, and secure disposal.

Develop and maintain information protection processes and policies, manage life cycle changes, backup and recovery, and test response plans through vulnerability management and tabletop exercises.

Implement PR.IP-1 by identifying and disabling unnecessary default functions on IoT devices and OT systems, testing changes with OEM guidance before deploying on the OT network.

Manage configuration change control and configuration management to document and approve a baseline configuration, track deviations, and reduce false positives through centralized dashboards and a system development life cycle approach.

Maintain on-site and off-site backups, inventory installation media, licenses, keys, and configuration data; verify integrity with hashes; test restoration; and enforce access control and change management.

Manage the physical operating environment with emergency protection controls, temperature and humidity safeguards, dust and EMI monitoring, and reliable power with UPS and emergency generators for safe shutdown.

Classifies incidents by impact and outlines detection, analysis, containment, and recovery. Defines incident response and recovery plans, risk assessment, training, and RTO/RPO.

Perform routine and preventive OT maintenance using local or remote tools, documented with tracking logs and audit trails; use approved software and harden devices before and after maintenance.

Coordinate security by aligning technical controls with organizational policies and procedures, and adopt a comprehensive approach that combines technical solutions, policy enforcement, and staff training to address evolving threats.

Configure OT logging to capture maintenance, OS, and application events, ensuring time synchronization, device identity, source and destination IPs, timestamps, and user identities for accurate, synchronized event correlation.

Develop media protection lifecycle for removable media, printed material, and storage devices, and enforce authorization, physical security, blue code scanners, and encryption to reduce high-risk targeted attacks on OTT network.

Learn how integrating human resources, security, and OT teams strengthens personnel security under the NIST 800-82 risk management framework, covering policies on risk designations, screening, terminations, access, and training.

Apply a risk-based approach to wireless deployments by conducting a wireless survey, selecting secure mesh or Zigbee networks, encrypting traffic, and enforcing unique SSIDs, MAC filtering, and zoning for resilience.

Remediate flaws with patch management to reduce vulnerabilities and the attack surface. Coordinate OEM-approved patches with testing, planned shutdown windows, and virtual or compensating controls.

As we near finishing this topic, push ahead and move to the next topic in the risk management framework OT security course.

The detect step uses IDS solutions like an alarm system to notice unusual activity across computers, networks, and industrial systems. Catch intruders early to prevent harm.

Identify anomalies and events in operational technology, tailor incident alerts and response criteria, and automate or manual responses; collect telemetry, correlate data, and set operational thresholds to reduce false positives.

Explore network monitoring for OT security, covering assessment, tool selection, sensor placement, baselining, and alert and log analysis to detect incidents in OT networks.

Investigate system use monitoring (dcm-1 and dcm-3) to track activity and behavior via logs, processes, file access, and config changes, enabling forensic analysis, event management, and safer OT operations.

Detect malicious code (DE.CM-4) using specialized scanning tools with heuristic algorithms and known malware signatures to scan files and data streams, guided by vendor-tested antivirus solutions.

Explore vulnerability scanning as a mix of manual and automated techniques, using passive and active methods, continuous monitoring, and audits to identify assets and security gaps.

Develop a robust detection process (DE.DP) by enabling efficient anomaly detection, establishing clear roles and rapid communication, and continuously testing and refining detection methods to adapt to evolving cybersecurity threats.

Implement the respond function with a clear action plan for cyber incidents, isolating affected networks, removing malware, and shutting down processes to stop lateral movements and minimize damage.

Apply a documented response plan to manage security incidents, recording SOPs, steps, and communications, then review logs and interviews to identify lessons learned and improve post-incident procedures.

Develop a response communications plan, assemble an incident response team with clear roles, and establish backup channels to ensure 24-hour reporting to the cert and detailed description within one month.

Analyze incidents by reviewing detections, isolating affected systems, and notifying the security team. Assess impacts, conduct forensic analysis, classify incidents per the plan, and consider external consultancy for ot dependencies.

Develop response mitigation to prevent incident spread, reduce impact, and resolve issues in line with the response plan, including remote OT components and tabletop-tested interventions.

Incorporate lessons learned, assign responsibility to document and communicate actions, and update faster alert procedures with the incident response team through tabletop exercises.

Recover enables organizations to restore normal operations after a disruption by repairing damage and bringing industrial systems back online. Plan improvements and lessons learned to strengthen OT security after incidents.

Document recovery actions to record how your organization executes its recovery plan during and after incidents; use alternative information gathering, analyze details later to improve the plan.

Improve cyber security resilience through continuous learning from recovery efforts. Document recovery steps with version tracking, analyze lessons learned, and enhance future recovery plans.

Coordinate recovery communications—internal and external—by building contact lists and issuing rapid alerts via email, SMS, and voicemail, while applying GRC governance to meet RTO and RPO and address reputation management.

Identify, protect, detect, respond, and recover guide OT cyber security to safeguard digital and physical infrastructure through vigilant detection, swift response, and resilient recovery.