Cyber Brews - IEC-62443 Security Levels, Simplified?
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Cyber Brews - IEC-62443 Security Levels, Simplified?
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Series 2 – Episode 5!
Cyber Brews: IEC-62443 Security Levels, Simplified?This month’s brew tackles the industrial cybersecurity standard that everyone talks about — but few really get: IEC 62443. If you’ve ever felt lost in a sea of FRs, SRs, and SLs, you’re not alone. We’re here to break it down, coffee (or pint) in hand.
In this episode, we unpack the core components of IEC 62443 — from Foundational Requirements (FRs) to Security Levels (SLs) — and explore what they actually mean for real-world OT environments.
Key topics on tap include:
- What the different Security Levels (SL1 to SL4) actually represent — and why SL4 isn’t always the goal
- The role of Foundational Requirements (FRs) and how they structure your cybersecurity baseline
- How System Requirements (SRs) map to practical controls in the field
- Why context matters: understanding your risk, your environment, and your realistic target level
So whether you’re just getting into IEC 62443 or trying to explain it to someone else without inducing a yawn, this episode’s for you.
Grab your brew of choice and join us as we demystify the standard — one security level at a time.
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