CompTIA · Free, ad-free audio course
A structured, audio-first learning route for CompTIA SecOT+, designed for focused review and practical understanding.
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Try 50 original BMC questions, review every explanation, and return to the lessons behind the answer. No login is required. Earn Challenge achievements and share your progress as you go.
Independent BMC learning practice—not official exam items, a full mock exam, or an exam-readiness score.
Companion Books
The study guide helps you organize and revisit the material. The flashcards book adds active recall and rapid review across the course objectives.
Study Guide
Use the companion study guide to organize the material, compare important concepts, annotate key ideas, and build a written reference for review.
Flashcards Book
Use the flashcards book for active recall, terminology checks, rapid review, and repeated practice across the course objectives.
Complete Lesson Directory
Search by topic or narrow the directory by exam domain. Courses with multiple editions are organized below so every season remains easy to find. Each lesson includes its own audio player, full description, transcript when available, and previous-or-next navigation.
88 lessons available
Getting Started
Listen to Decode the SecOT+ SOT-001 Blueprint, Scoring, Policies, and Question Styles in the CompTIA SecOT+ audio course.
Getting Started
Listen to Execute a Spoken Study Plan and Exam-Day Mental Model for SecOT+ Success in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Apply OT Jobsite Safety: Hazards, PPE, and Lockout/Tagout Done Right in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Run a Job Safety Analysis in OT: Briefings, Outbriefs, and Safe Work Controls in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Explain OT Versus IT: Convergence, Responsibilities, and Operational Constraints in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Identify OT Device Roles: Sensors, Actuators, Controllers, PLCs, HMIs, and RTUs in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Classify OT Workstations and Data Systems: Engineers, Operators, Historians, Portables in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Distinguish ICS System Types: DCS, SCADA, SIS, MES, and Localized Control Networks in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Recognize Stand-Alone Systems and Networks Across Critical Infrastructure Sectors in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Explain Control Logic Foundations: Ladder Logic, FBD, Structured Text, and SFC in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Master Process Variables and Set Points: How Control Loops Behave Under Stress in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Track I/Os, Watchdogs, Timers, Current Values, and Tags Without Confusion in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Work with Serial OT Communications: RS-232, RS-485, and Practical Limitations in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Secure Serial Protocol Reality: Modbus RTU, Profibus, Data Highway Plus, and DNP3 in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Engineer Ethernet OT Communications: EtherCAT, Modbus TCP, and CIP/EtherNet/IP in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Use OPC DA and OPC UA Safely: Data Exchange, Trust, and Interoperability in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Handle Building Automation Networks: BACnet, KNX, and Profinet in Mixed Environments in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Operate OT Wireless Reliably: VHF, AIS, VSAT, M-Bus, 802.15.4, and 802.11 in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Compare Legacy OT Constraints: Embedded, Proprietary, RTOS, and General-Purpose OSs in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Manage Legacy OT Hardware and Ports: Physical Exposure, Protocol Limits, and Access in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Apply Modern OT Patterns: Virtual Machines, Hypervisors, Switching, and Virtual PLCs in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Use Containers, SDN, and Middleware in OT: Benefits, Risks, and Failure Modes in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Evaluate AI in OT Security: ML, Generative AI, and Operational Risk Tradeoffs in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Place OT Workloads in Cloud and Edge: Public, Private, Hybrid, and Vendor Services in the CompTIA SecOT+ audio course.
Domain 1 · OT Systems and Safety Foundations
Listen to Understand Privatized Backbones and Autonomous Systems: Security and Resilience Impacts in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Explain OT GRC Value: Security That Supports Operations, Not Fights Them in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Align OT Security to Business Objectives: Risk Appetite, Continuity, and Recovery in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Balance Security Versus Operations: Governance Structures and Decision Authorities in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Translate OT Business Impact: Financial, Reputational, Quality, and Operational Consequences in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Prioritize Safety Outcomes: Loss of Life, Environmental Harm, and Reliability Expectations in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Navigate Legal and Regulatory Drivers: Compliance Pressure and Non-Compliance Fallout in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Build a Cybersecurity Program in OT: Risk Levels, Registry, and Maturity Assessment in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Benchmark OT Security Progress: Baselines, Targets, and Evidence That Holds Up in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Develop Practical Roadmaps: Sequencing Improvements Without Production Disruption in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Use the RACI Model in OT: Clear Ownership Across Engineering, Ops, and Security in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Manage Stakeholders in OT: Trust, Communication, and Change Acceptance in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Build OT Service Agreements: Procurement Requirements and What MSAs Must Cover: in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Define OT SLAs: Internal Versus External Expectations That Protect Uptime in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Use MOUs and SOWs Correctly: Scope, Responsibilities, and Deliverable Discipline in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Measure OT Security With Purpose: Metrics, Measures, and What They Really Signal in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Build Training and Awareness for OT Teams: Competence Without Chaos in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Determine Asset Criticality: What Fails First, What Hurts Most, and Why in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Produce OT Documentation That Works: Policies, Processes, Standards, and SOPs in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Explain OT Risk Assessment Frameworks: NIST and ISA/IEC Approaches in Practice in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Model Likelihood and Consequence: Risk Variables That Drive Real Decisions in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Scope OT Risk Assessments: Assets, Networks, and Boundaries You Can Defend in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Identify OT Threat Surface: Vectors, Exposure, and Threat Actors in Context in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Apply Scenario-Based Risk Methods: Realistic Failure Paths and Meaningful Mitigations in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Assess Supply Chain Risk in OT: Hardware, Software, and Vendor Dependencies in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Evaluate Third-Party Risk: Integrators, Remote Support, and Shared Responsibility in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Use Failure Mode and Criticality Thinking: Safety, Reliability, and Cascading Effects in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Choose Qualitative Versus Quantitative Risk: When Each Method Actually Helps in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Conduct Architecture Reviews for OT Risk: Data Flows, Trust Boundaries, and Weak Links in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Understand OT Pen Tests and Adversarial Emulation: Safety Constraints and Value in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Control and Treat OT Risk: Controls Catalogs, Documentation, and Acceptance Criteria in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Track Inherited Risk and Maturity Indicators: What You Own Versus What You Inherit in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Operate a Controls Calendar: Scheduling, Evidence, and Sustainable Compliance in the CompTIA SecOT+ audio course.
Domain 2 · OT Risk Management
Listen to Monitor and Disposition Risk: Residuals, Audits, Reporting, Escalations, and Decisions in the CompTIA SecOT+ audio course.
Domain 3 · OT Threat Intelligence
Listen to Threat Intelligence Foundations: Intelligence Types and What Each One Delivers in the CompTIA SecOT+ audio course.
Domain 3 · OT Threat Intelligence
Listen to Use the Intelligence Life Cycle: Collection, Analysis, Dissemination, and Feedback Loops in the CompTIA SecOT+ audio course.
Domain 3 · OT Threat Intelligence
Listen to Apply Threat Intelligence Frameworks: Diamond Model, ATT&CK for ICS, and Kill Chain in the CompTIA SecOT+ audio course.
Domain 3 · OT Threat Intelligence
Listen to Learn from Direct-Impact OT Events: Stuxnet, TRISIS, BlackEnergy, FrostyGoop, Industroyer in the CompTIA SecOT+ audio course.
Domain 3 · OT Threat Intelligence
Listen to Learn from Indirect-Impact Events: Colonial Pipeline, SolarWinds, Maersk, AcidRain, CrowdStrike 2024, RTX in the CompTIA SecOT+ audio course.
Domain 3 · OT Threat Intelligence
Listen to Analyze the OT Threat Landscape: Actor Motives, Capabilities, and Physical Consequences in the CompTIA SecOT+ audio course.
Domain 3 · OT Threat Intelligence
Listen to Identify OT Threat Vectors: Remote Access, Media, Supply Chain, and IT-to-OT Pivoting in the CompTIA SecOT+ audio course.
Domain 3 · OT Threat Intelligence
Listen to Operationalize Intel Data Types: IOCs, STIX, YARA, and Where They Fit in OT in the CompTIA SecOT+ audio course.
Domain 3 · OT Threat Intelligence
Listen to Turn Telemetry Into Intelligence: Logs, Sessions, and Anomalies That Matter in the CompTIA SecOT+ audio course.
Domain 4 · OT Cybersecurity Architecture, Design and Engineering
Listen to Explain Secure OT Architectural Principles: Least Privilege, Determinism, and Defense in Depth in the CompTIA SecOT+ audio course.
Domain 4 · OT Cybersecurity Architecture, Design and Engineering
Listen to Design for Operational Resilience: Endurance, Redundancy, High Availability, Recoverability in the CompTIA SecOT+ audio course.
Domain 4 · OT Cybersecurity Architecture, Design and Engineering
Listen to Engineer Compartmentalization and Criticality: Limiting Blast Radius Without Breaking Control in the CompTIA SecOT+ audio course.
Domain 4 · OT Cybersecurity Architecture, Design and Engineering
Listen to Build for Performance, Auditability, and Observability: Trust You Can Prove in the CompTIA SecOT+ audio course.
Domain 4 · OT Cybersecurity Architecture, Design and Engineering
Listen to Maintain Interoperability and Simplicity: Compatibility Without Expanding Attack Surface in the CompTIA SecOT+ audio course.
Domain 4 · OT Cybersecurity Architecture, Design and Engineering
Listen to Apply Physical Security in OT: Badges, Readers, Biometrics, and Turnstiles in the CompTIA SecOT+ audio course.
Domain 4 · OT Cybersecurity Architecture, Design and Engineering
Listen to Secure Rooms, Cabinets, and Cabling: IDFs, MDFs, and Exposure Reduction in the CompTIA SecOT+ audio course.
Domain 4 · OT Cybersecurity Architecture, Design and Engineering
Listen to Use Surveillance and Inspection: Walkdowns, Video, Motion Detection, Spectrum Analysis in the CompTIA SecOT+ audio course.
Domain 4 · OT Cybersecurity Architecture, Design and Engineering
Listen to Implement Perimeter Controls: Fences, Barriers, and Access Governance for Facilities in the CompTIA SecOT+ audio course.
Domain 5 · OT Security Operations
Listen to Operationalize Asset Management: Inventory Discovery, Creation, Validation, and Maintenance in the CompTIA SecOT+ audio course.
Domain 5 · OT Security Operations
Listen to Choose Discovery Methods Carefully: Passive, Active, and Manual Approaches in OT in the CompTIA SecOT+ audio course.
Domain 5 · OT Security Operations
Listen to Capture Key Asset Attributes: Identity, Location, Ports, Ownership, Vendor, and Function in the CompTIA SecOT+ audio course.
Domain 5 · OT Security Operations
Listen to Maintain Software Inventory and Map to Hardware: Visibility That Enables Decisions in the CompTIA SecOT+ audio course.
Domain 5 · OT Security Operations
Listen to Map Assets to a CMDB: Attributes, Relationships, and Drift Control: in the CompTIA SecOT+ audio course.
Domain 5 · OT Security Operations
Listen to Apply a Collection Management Framework: What to Collect, How Often, and Why in the CompTIA SecOT+ audio course.
Domain 6 · OT Incident Management
Listen to Describe OT Incident Management Frameworks: PICERL and ICS4ICS With Clear Roles in the CompTIA SecOT+ audio course.
Domain 6 · OT Incident Management
Listen to Address Overarching OT Incident Considerations: Cyber, Physical, Crisis, and Facilities in the CompTIA SecOT+ audio course.
Domain 6 · OT Incident Management
Listen to Coordinate IT and OT During Incidents: Nuances, Authority, and Safety Priorities in the CompTIA SecOT+ audio course.
Domain 6 · OT Incident Management
Listen to Plan Mutual Aid and Retainers: ISACs, Peer Support, and IRR Readiness in the CompTIA SecOT+ audio course.
Domain 6 · OT Incident Management
Listen to Execute Escalation and Notification: Internal, Government, and Regulator Expectations in the CompTIA SecOT+ audio course.
Domain 6 · OT Incident Management
Listen to Prepare for Incidents: Draft and Update IR Documentation That OT Can Use in the CompTIA SecOT+ audio course.
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A Practical Study Routine
Use the free audio course during a commute, walk, workout, or focused study session.
Use the study guide to organize the material, annotate key ideas, and build a reference you can return to.
Use the flashcards book to practice active recall and quickly revisit weak areas.
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