# IEC 62443

> IEC 62443 is the reference series for the security of industrial automation and control systems (IACS). Its security-level and requirement structure gives industrial buyers a familiar frame for a robot policy’s adversarial-robustness evidence.

Regulation/standard: IEC 62443 (series)
Timing: Series of standards; referenced by industrial-security assessors.

## What it is

- A multi-part series covering IACS security across asset owners, integrators and product suppliers.
- It defines Security Levels (SL 1–4) reflecting resistance to increasingly capable adversaries.
- It is the de-facto expectation for OT/industrial security in many procurement processes.

## Where a red-team result fits

- **Security levels** — SLs express resistance to attacker capability; a measured ASR under defined attack channels is evidence toward a target SL for the policy layer.

## What Provael maps to it

- Adversarial-robustness evidence framed against attacker capability (the SL model).
- A per-channel breakdown mapping to distinct threat vectors.
- Reproducible artifacts an integrator can fold into a 62443-3-3 system assessment.

## Dates (verified 6 Jul 2026)

- Series status: Actively maintained (multi-part)

## Sources

- IEC 62443 (IEC): https://www.iec.ch/cyber-security
- ISA/IEC 62443 (ISA): https://www.isa.org/standards-and-publications/isa-standards/isa-iec-62443-series-of-standards

Canonical: https://www.provael.com/compliance/iec-62443

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Provael · Prove it. Prevail. · Apache-2.0 · https://github.com/provael/provael
Not legal advice; verify regulatory dates against the primary source.