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Industry Standards

IEC 62443 (OT Security)

IEC 62443 is the international standard for securing Industrial Automation and Control Systems (IACS). As OT systems connect to IT networks and the internet, the attack surface of Indian manufacturers, energy utilities and critical infrastructure operators has expanded dramatically. IEC 62443 provides the framework for securing these environments. Cybria Secure delivers IEC 62443 aligned OT security assessments without disrupting production.

Who Needs IEC 62443?

  • Manufacturing companies with SCADA/PLC
  • Energy and utility operators
  • Oil and gas companies
  • Water treatment facilities
  • Pharmaceutical manufacturers (21 CFR Part 11)
  • OT vendors and system integrators
  • Critical infrastructure operators

How We Help You Achieve IEC 62443

A structured, proven approach — from gap assessment through to certification.

01

OT Asset Discovery

Non-intrusive passive discovery of all OT assets — PLCs, RTUs, HMIs, historians and engineering workstations.

02

Zone and Conduit Design

Define security zones and conduits following IEC 62443-3-2 methodology.

03

Risk Assessment

OT-specific risk assessment against IEC 62443 Security Level targets.

04

Gap Assessment

Benchmark current OT controls against IEC 62443-3-3 System Security Requirements.

05

Remediation Roadmap

Prioritized remediation plan with OT-specific constraints — maintenance windows, vendor dependencies.

06

Ongoing Support

Periodic re-assessment and support for IEC 62443 certification engagement.

Key Requirements

Core obligations you must satisfy to achieve IEC 62443 (OT Security) compliance.

Security zone and conduit model (IEC 62443-3-2)
OT asset inventory and classification
Access control for OT systems
Remote access security
Patch management for OT components
OT-specific incident response
Backup and recovery for OT systems
Physical security for OT environments
Network segmentation between IT and OT
Supply chain and vendor security

Key Benefits

What achieving IEC 62443 compliance means for your business.

1
Secure OT/IT convergence safely
2
Meet global customer and insurance requirements
3
Prevent production-disrupting cyberattacks
4
Structured OT security governance
5
Align with international critical infrastructure standards

Ready to get IEC 62443 certified?

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Achieve IEC 62443 Compliance Faster

Free scoping call. Transparent pricing. Expert guidance.

Frequently Asked Questions

Is IEC 62443 mandatory in India?

Not universally mandatory yet, but CEA guidelines for power sector OT security reference IEC 62443. Additionally, global manufacturing clients and insurers are increasingly requiring IEC 62443 alignment as a condition of contracts and cyber insurance.

Can you assess our OT environment without shutting down production?

Yes. Our OT assessment uses passive discovery and architecture review techniques for live production systems. Active penetration testing is only conducted on isolated systems or during scheduled maintenance windows — never on live PLCs or RTUs.

Start Your IEC 62443 Journey

Certified compliance experts. Transparent process. Free scoping call — no commitment required.

Based in Kolhapur · Serving all of India · Remote & On-site