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IEC 62443 and NIS2 Compliance Checklist 

When compliance must protect people, process and power 

Electric utilities and other critical operators no longer treat cybersecurity as a checkbox. Today it’s a board-level safety and resilience imperative: demonstrate to regulators you can prevent, detect and recover from cyber events that could cascade into outages, environmental harm or safety incidents. Shieldworkz IEC 62443 & NIS2 Compliance Checklist is a pragmatic, field-tested guide built to help CISOs, OT engineers and operations leaders convert standards into action - fast. 

This Checklist synthesizes core IEC 62443 controls and NIS2 obligations into a single, prioritized program - mapping zones & conduits, vendor controls, incident reporting timelines, and testable KPIs so you can show auditors and executives measurable progress.

Why this checklist matters now

Regulatory pressure is real. NIS2 requires timely incident reporting, board accountability and demonstrable risk management. 

Standards overlap - intelligently. Implementing IEC 62443 in OT often satisfies many NIS2 mandates; do it once, do it well. 

OT environments are fragile. Controls must protect availability and safety first - not break processes. 

Boards want metrics. You’ll need easy-to-read KPIs (MTTD, MTTR, inventory coverage) to secure funding and demonstrate progress. 

What you’ll get in the Checklist 

Shieldworkz turned standards into operational tasks you can start applying immediately. The pack includes: 

Dual-framework mapping: Clear actions that satisfy both IEC 62443 and NIS2 requirements (risk assessment, access control, segmentation, supply chain). 

Zone & conduit templates: Purdue-aligned zone maps, recommended security levels per zone, and conduit enforcement checklists. 

Incident reporting playbook: 24-hour early-warning checklist, 72-hour reporting template, and one-month final report structure to meet NIS2 timelines. 

Practical controls library: Jump-host patterns, DMZ/IDMZ rules, unidirectional flows, PKI recommendations, and backup/immutable storage steps. 

90-180 day implementation roadmap: Phase-based workplan (Foundation → Core Controls → Advanced → Optimization) with owners and deliverables. 

Key takeaways (quick wins you can implement this month) 

Start with visibility. Build a living asset inventory (IPs, firmware, physical location) and classify each device by criticality. 

Segment to reduce blast radius. Enforce deny-by-default at zone boundaries and use an industrial DMZ for all IT↔OT flows. 

Harden remote vendor access. Use JIT jump hosts, MFA, session recording and pre-approved change tickets. 

Make incident reporting operational. Implement templates, responsibilities, and a 24/7 on-call chain so NIS2 deadlines are met without scrambling. 

Backups are not optional. Follow 3-2-1, test restores quarterly and keep immutable copies for recovery from ransomware. 

What’s inside: a practical contents snapshot 

Overlapping controls (risk assessments, access, segmentation, crypto, monitoring) 

IEC 62443-specific guidance (zones, security levels, component procurement and SDLC) 

NIS2-specific items (management accountability, incident timelines, reporting templates) 

Documentation & governance checklists (evidence folders for audits) 

Testing plans (pen tests, tabletop exercises, BCP/DR validation) 

KPIs and board-ready scorecards 

How Shieldworkz helps you operationalize the Checklist 

We don’t just hand over a Checklist - we convert it into outcomes: 

Discovery & gap assessment (7-14 days): Passive asset mapping, zone verification and executive risk briefing. 

90-day remediation sprint: Implement critical segmentation, vendor access controls, and centralized logging so you can show tangible improvement fast. 

Detection & response build: Deploy OT-aware monitoring, tune alerts to process cycles and integrate the playbook into your SOC. 

Regulatory readiness pack: Pre-filled templates for NIS2 incident reporting, board scorecards, and an evidence folder aligned to IEC 62443 clauses. 

Managed or co-managed services: Continuous monitoring, vulnerability cadence, and annual tabletop exercises with your OT and operations teams. 

Deliverables include a prioritized risk register, segmentation design, vendor access policy, incident templates, and an executive dashboard of KPIs. 

Measurable outcomes you can expect 

Inventory coverage increase to ≥95% for critical assets within 30 days 

Initial reduction in exposed EAPs and vendor pivot paths within 90 days 

Documented 24-hour early-warning process and 72-hour report template in place for regulators 

Board-grade dashboard showing MTTD, MTTR, inventory completeness and vendor session audit coverage 

Take action now: Download the IEC 62443 & NIS2 Compliance Checklist

Secure, auditable OT isn’t achieved by posture alone - it requires an executable plan that balances safety, availability and compliance. The Shieldworkz Checklist turns standards into that plan. 

Fill out the form to download the Checklist and schedule your complimentary scoping call with a Shieldworkz OT specialist today. 

Download your copy today!

Get our free IEC 62443 and NIS2 Compliance Checklist and make sure you’re covering every critical control in your industrial network

When compliance must protect people, process and power 

Electric utilities and other critical operators no longer treat cybersecurity as a checkbox. Today it’s a board-level safety and resilience imperative: demonstrate to regulators you can prevent, detect and recover from cyber events that could cascade into outages, environmental harm or safety incidents. Shieldworkz IEC 62443 & NIS2 Compliance Checklist is a pragmatic, field-tested guide built to help CISOs, OT engineers and operations leaders convert standards into action - fast. 

This Checklist synthesizes core IEC 62443 controls and NIS2 obligations into a single, prioritized program - mapping zones & conduits, vendor controls, incident reporting timelines, and testable KPIs so you can show auditors and executives measurable progress.

Why this checklist matters now

Regulatory pressure is real. NIS2 requires timely incident reporting, board accountability and demonstrable risk management. 

Standards overlap - intelligently. Implementing IEC 62443 in OT often satisfies many NIS2 mandates; do it once, do it well. 

OT environments are fragile. Controls must protect availability and safety first - not break processes. 

Boards want metrics. You’ll need easy-to-read KPIs (MTTD, MTTR, inventory coverage) to secure funding and demonstrate progress. 

What you’ll get in the Checklist 

Shieldworkz turned standards into operational tasks you can start applying immediately. The pack includes: 

Dual-framework mapping: Clear actions that satisfy both IEC 62443 and NIS2 requirements (risk assessment, access control, segmentation, supply chain). 

Zone & conduit templates: Purdue-aligned zone maps, recommended security levels per zone, and conduit enforcement checklists. 

Incident reporting playbook: 24-hour early-warning checklist, 72-hour reporting template, and one-month final report structure to meet NIS2 timelines. 

Practical controls library: Jump-host patterns, DMZ/IDMZ rules, unidirectional flows, PKI recommendations, and backup/immutable storage steps. 

90-180 day implementation roadmap: Phase-based workplan (Foundation → Core Controls → Advanced → Optimization) with owners and deliverables. 

Key takeaways (quick wins you can implement this month) 

Start with visibility. Build a living asset inventory (IPs, firmware, physical location) and classify each device by criticality. 

Segment to reduce blast radius. Enforce deny-by-default at zone boundaries and use an industrial DMZ for all IT↔OT flows. 

Harden remote vendor access. Use JIT jump hosts, MFA, session recording and pre-approved change tickets. 

Make incident reporting operational. Implement templates, responsibilities, and a 24/7 on-call chain so NIS2 deadlines are met without scrambling. 

Backups are not optional. Follow 3-2-1, test restores quarterly and keep immutable copies for recovery from ransomware. 

What’s inside: a practical contents snapshot 

Overlapping controls (risk assessments, access, segmentation, crypto, monitoring) 

IEC 62443-specific guidance (zones, security levels, component procurement and SDLC) 

NIS2-specific items (management accountability, incident timelines, reporting templates) 

Documentation & governance checklists (evidence folders for audits) 

Testing plans (pen tests, tabletop exercises, BCP/DR validation) 

KPIs and board-ready scorecards 

How Shieldworkz helps you operationalize the Checklist 

We don’t just hand over a Checklist - we convert it into outcomes: 

Discovery & gap assessment (7-14 days): Passive asset mapping, zone verification and executive risk briefing. 

90-day remediation sprint: Implement critical segmentation, vendor access controls, and centralized logging so you can show tangible improvement fast. 

Detection & response build: Deploy OT-aware monitoring, tune alerts to process cycles and integrate the playbook into your SOC. 

Regulatory readiness pack: Pre-filled templates for NIS2 incident reporting, board scorecards, and an evidence folder aligned to IEC 62443 clauses. 

Managed or co-managed services: Continuous monitoring, vulnerability cadence, and annual tabletop exercises with your OT and operations teams. 

Deliverables include a prioritized risk register, segmentation design, vendor access policy, incident templates, and an executive dashboard of KPIs. 

Measurable outcomes you can expect 

Inventory coverage increase to ≥95% for critical assets within 30 days 

Initial reduction in exposed EAPs and vendor pivot paths within 90 days 

Documented 24-hour early-warning process and 72-hour report template in place for regulators 

Board-grade dashboard showing MTTD, MTTR, inventory completeness and vendor session audit coverage 

Take action now: Download the IEC 62443 & NIS2 Compliance Checklist

Secure, auditable OT isn’t achieved by posture alone - it requires an executable plan that balances safety, availability and compliance. The Shieldworkz Checklist turns standards into that plan. 

Fill out the form to download the Checklist and schedule your complimentary scoping call with a Shieldworkz OT specialist today. 

Download your copy today!

Get our free IEC 62443 and NIS2 Compliance Checklist and make sure you’re covering every critical control in your industrial network

When compliance must protect people, process and power 

Electric utilities and other critical operators no longer treat cybersecurity as a checkbox. Today it’s a board-level safety and resilience imperative: demonstrate to regulators you can prevent, detect and recover from cyber events that could cascade into outages, environmental harm or safety incidents. Shieldworkz IEC 62443 & NIS2 Compliance Checklist is a pragmatic, field-tested guide built to help CISOs, OT engineers and operations leaders convert standards into action - fast. 

This Checklist synthesizes core IEC 62443 controls and NIS2 obligations into a single, prioritized program - mapping zones & conduits, vendor controls, incident reporting timelines, and testable KPIs so you can show auditors and executives measurable progress.

Why this checklist matters now

Regulatory pressure is real. NIS2 requires timely incident reporting, board accountability and demonstrable risk management. 

Standards overlap - intelligently. Implementing IEC 62443 in OT often satisfies many NIS2 mandates; do it once, do it well. 

OT environments are fragile. Controls must protect availability and safety first - not break processes. 

Boards want metrics. You’ll need easy-to-read KPIs (MTTD, MTTR, inventory coverage) to secure funding and demonstrate progress. 

What you’ll get in the Checklist 

Shieldworkz turned standards into operational tasks you can start applying immediately. The pack includes: 

Dual-framework mapping: Clear actions that satisfy both IEC 62443 and NIS2 requirements (risk assessment, access control, segmentation, supply chain). 

Zone & conduit templates: Purdue-aligned zone maps, recommended security levels per zone, and conduit enforcement checklists. 

Incident reporting playbook: 24-hour early-warning checklist, 72-hour reporting template, and one-month final report structure to meet NIS2 timelines. 

Practical controls library: Jump-host patterns, DMZ/IDMZ rules, unidirectional flows, PKI recommendations, and backup/immutable storage steps. 

90-180 day implementation roadmap: Phase-based workplan (Foundation → Core Controls → Advanced → Optimization) with owners and deliverables. 

Key takeaways (quick wins you can implement this month) 

Start with visibility. Build a living asset inventory (IPs, firmware, physical location) and classify each device by criticality. 

Segment to reduce blast radius. Enforce deny-by-default at zone boundaries and use an industrial DMZ for all IT↔OT flows. 

Harden remote vendor access. Use JIT jump hosts, MFA, session recording and pre-approved change tickets. 

Make incident reporting operational. Implement templates, responsibilities, and a 24/7 on-call chain so NIS2 deadlines are met without scrambling. 

Backups are not optional. Follow 3-2-1, test restores quarterly and keep immutable copies for recovery from ransomware. 

What’s inside: a practical contents snapshot 

Overlapping controls (risk assessments, access, segmentation, crypto, monitoring) 

IEC 62443-specific guidance (zones, security levels, component procurement and SDLC) 

NIS2-specific items (management accountability, incident timelines, reporting templates) 

Documentation & governance checklists (evidence folders for audits) 

Testing plans (pen tests, tabletop exercises, BCP/DR validation) 

KPIs and board-ready scorecards 

How Shieldworkz helps you operationalize the Checklist 

We don’t just hand over a Checklist - we convert it into outcomes: 

Discovery & gap assessment (7-14 days): Passive asset mapping, zone verification and executive risk briefing. 

90-day remediation sprint: Implement critical segmentation, vendor access controls, and centralized logging so you can show tangible improvement fast. 

Detection & response build: Deploy OT-aware monitoring, tune alerts to process cycles and integrate the playbook into your SOC. 

Regulatory readiness pack: Pre-filled templates for NIS2 incident reporting, board scorecards, and an evidence folder aligned to IEC 62443 clauses. 

Managed or co-managed services: Continuous monitoring, vulnerability cadence, and annual tabletop exercises with your OT and operations teams. 

Deliverables include a prioritized risk register, segmentation design, vendor access policy, incident templates, and an executive dashboard of KPIs. 

Measurable outcomes you can expect 

Inventory coverage increase to ≥95% for critical assets within 30 days 

Initial reduction in exposed EAPs and vendor pivot paths within 90 days 

Documented 24-hour early-warning process and 72-hour report template in place for regulators 

Board-grade dashboard showing MTTD, MTTR, inventory completeness and vendor session audit coverage 

Take action now: Download the IEC 62443 & NIS2 Compliance Checklist

Secure, auditable OT isn’t achieved by posture alone - it requires an executable plan that balances safety, availability and compliance. The Shieldworkz Checklist turns standards into that plan. 

Fill out the form to download the Checklist and schedule your complimentary scoping call with a Shieldworkz OT specialist today. 

Download your copy today!

Get our free IEC 62443 and NIS2 Compliance Checklist and make sure you’re covering every critical control in your industrial network