OT-aware cybersecurity for critical infrastructure.

Energy and utilities operate the one cyber-risk class where a breach is measured in megawatts and human safety, not just data. SCADA, PLCs, RTUs and safety instrumented systems run the physical process, and most of this estate is designated Critical Information Infrastructure under Section 70A of the IT Act — placing it squarely under NCIIPC. Power-sector operators additionally answer to the Central Electricity Authority's Cyber Security in Power Sector Guidelines 2021 (a mandatory framework with an ISMS, audits, a CISO and IT/OT segregation), and everyone reports incidents to CERT-In within six hours.

Macksofy runs energy engagements as a safety-first OT programme, not an IT audit pointed at a plant. We begin with passive asset discovery and an IT/OT path map, design zones and conduits to IEC 62443, and deliver OT-aware testing that uses passive analysis and twin/shutdown-window testing rather than live active scanning that could trip a running process. The same evidence base is mapped to NCIIPC and the CEA guidelines so the regulator review and the security programme are one effort, not two.

What's specific to energy vs. a generic engagement: the air-gap is almost always already bridged (engineering laptops, vendor VPNs, IIoT gateways, historians replicating to the corporate data lake), so connectivity is assumed and every path is found; OT devices are 15–30-year assets the OEM forbids you to patch or run EDR on, so segmentation and passive monitoring carry the load; and the incident-response plan's first question is whether the process and the people are safe, with named OT and safety-engineer escalation.