IEC 62443: OT Network Monitoring and Intrusion Detection — Choosing and Deploying Passive Sensors

Date
2027-06-21
Location
Online
Host
Zach L
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About this event

A live 30-minute expert session on OT Network Monitoring and Intrusion Detection — Choosing and Deploying Passive Sensors (IEC 62443 — Industrial Cybersecurity). What We'll Cover: Where continuous monitoring sits in the CSMS operate phase and which FR6 and 3-3 requirements it satisfies The deployment method step by step: sensor placement per zone, SPAN/TAP engineering, protocol coverage checks (Modbus, DNP3, S7, OPC UA), baseline learning, alert tuning How detections map to incident response triggers and the monitoring coverage map and alert runbooks produced Common mistakes: sensors only at the perimeter, unreviewed alert floods, monitoring appliances themselves unmanaged and unpatched The evidence auditors look for: coverage versus zone map, triage records and detection tests that prove alerts actually fire Related topics: ot ids · passive monitoring · network sensors · span tap · protocol dissection · modbus dnp3 · anomaly detection · alert triage · monitoring coverage · detection engineering · nozomi claroty dragos · baseline learning Critical Systems Analysis provides embedded functional safety consulting for IEC 62443 — Industrial Cybersecurity. Learn more: https://criticalsystemsanalysis.com Partner with us: https://meetings.hubspot.com/benjamin-twombly/strategic-partnerships

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About Functional Safety Foundations

This online session delivers expert-led instruction on the regulatory landscape and implementation approach for Functional Safety Foundations.

The cross-sector fundamentals underlying every functional safety standard: risk as severity × likelihood, the safety function concept, integrity levels, the safety lifecycle, and the split between random and systematic failures.

What it regulates

Shared vocabulary and reasoning: hazard → risk → risk reduction allocation → safety requirement → verified implementation → maintained integrity in operation.

Who must comply

Everyone entering the field — the conceptual base of the entire catalog.

Key requirements of Functional Safety Foundations

  • Hazard and risk fundamentals
  • Safety function anatomy: sensor-logic-actuator with defined safe state
  • Integrity ladders (SIL/PL/ASIL/DAL) as risk-reduction currencies
  • Random vs systematic failure treatment
  • Lifecycle and management of functional safety incl. competence

Key concepts: Functional Safety Foundations

Functional safety management
Planning, competence, documentation and assessment wrapped around technical work.
Random vs systematic
Hardware wear-out/chance failures quantified statistically versus design/process errors controlled by rigor.
Risk reduction allocation
Distributing required risk reduction among mechanical design, safeguards, control functions and procedures.
Safe state
The defined condition a function drives the equipment to on demand or fault.

Frequently asked questions: Functional Safety Foundations

Why can't testing alone prove safety?

Rare-event targets (like 1e-7/h) are unverifiable by test duration, and systematic errors evade random testing — hence the standards' dual machinery of quantified hardware analysis plus process rigor and independent assessment.

Standard information based on the published text of Functional Safety Foundations. Event content is provided by the host. For authoritative guidance, consult the official standard body.