A field technician arrives on site to restore service and cannot access the system needed to complete the work. At the same time, a vendor still has active credentials long after a project has ended. These are everyday examples we see of how access decisions, when not clearly defined, can introduce real risk to energy operations.
Enterprise security is still largely centered on a belief that no longer holds true: that defenses can be built around a network boundary. Firewalls, VPNs, and perimeter controls were effective when users and data lived in predictable places. Today, clinging to that traditional security model creates a false sense of security.
In many energy environments, that shift is further complicated by the convergence of IT and OT systems and the growing need to support distributed operations. Systems that were once isolated now require remote access for monitoring, maintenance, and integration across sites. At the same time, organizations must be able to demonstrate control over access to critical systems to meet regulatory expectations.
Work no longer happens inside a corporate network. Employees log in from anywhere. Data flows through cloud platforms and vendors that the enterprise does not fully control. Service accounts and APIs now outnumber human users, operating continuously beyond the traditional IT perimeter. The perimeter, as we’ve come to know it, has disappeared.
Modern cybersecurity is now about who or what is requesting access, in what context, and whether that access should be granted right now. Identity, not location, has become the fundamental point of defense. This is the approach we take with our energy clients.
The Disappearing Traditional Perimeter in Energy (And Elsewhere)
The traditional network was built around an interior protected by defined walls. This model worked when applications were on-premises, employees worked from fixed locations, and partners connected through tightly controlled VPN tunnels. If traffic originated “inside” the network, it was trusted.
That model has been steadily eroded by how energy organizations actually operate today. Access is no longer confined to a centralized network. Control room systems, field assets, generation facilities, and third-party vendor platforms all require connectivity. Engineers, operators, and contractors must access systems from plants, substations, remote sites, and mobile devices. As a result, the idea of a single “inside” boundary has become increasingly disconnected from how work gets done.
The reality of that clean, well-defined perimeter has now disappeared.
Cloud platforms such as AWS, Azure, and Google Cloud have replaced traditional data centers, with more than 73% of enterprises now operating in multi-cloud or hybrid environments. Critical processes, from asset management to outage response, now depend on SaaS platforms. Employees and contractors log in from control centers, field locations, and remote environments. Meanwhile, non-human identities like service accounts or API keys run continuously across IT and OT environments. Firewalls, while still valuable, can no longer serve as the primary line of defense.
Sophisticated attackers understand this shift and have adapted accordingly. Rather than breaching hardened network edges, they target identities like phishing operators, exploiting vendor credentials, or leveraging poorly secured service accounts tied to operational systems. In many cases, they take advantage of access that was originally granted to support maintenance, monitoring, or integration.
John Kindervag, the creator of the Zero Trust model, described traditional networks as having a “hard crunchy outside and a soft chewy center.” In energy environments, that “center” now spans control systems, cloud platforms, and partner access points that support real-time operations.
The fundamental question of modern security has therefore changed. It is no longer “Is this traffic coming from inside or outside the network?” but rather “Who, or what, is requesting access, and do they have a legitimate, contextual right to it right now and is that access aligned with operational need?”
Identity as the Core Security Control
Identity now governs access across the modern energy enterprise. Every user, device, application, and workload must authenticate and prove its legitimacy before gaining access to systems that support operational functions. Identity directly affects uptime, safety, and work.
This becomes clear in day-to-day operations. When a field technician cannot access a system required to complete maintenance, restoration is delayed. When a contractor retains access to operational systems beyond the scope of their work, risk increases. These are not isolated issues, but identity challenges that impact response time and compliance.
At the heart of this shift lies Zero Trust, the security model that has redefined how organizations protect interconnected environments.
Zero Trust operates on one fundamental principle: Never trust, always verify. Unlike the traditional model that assumed anything behind a firewall was safe, Zero Trust treats every access request as potentially risky until validated in real time.
It is built on three core tenets:
- Verify explicitly: Evaluate every request using contextual signals—identity, device, location, and behavior—ensuring access aligns with operational need.
- Apply least privilege: Grant only the access required to complete a specific task, limiting exposure across both IT and OT systems.
- Assume breach: Design environments to limit lateral movement, recognizing that access to one system should not automatically extend to others.
In this framework, identity becomes dynamic and context-aware. Access decisions can reflect real-world conditions whether a user is performing routine work, responding to an outage, or attempting an unusual action. This allows organizations to balance security with operational continuity, ensuring the right access is available when it is needed.
The Hidden Identity Gaps Energy Organizations Miss
Many energy organizations believe they have “solved” identity because they have deployed multi-factor authentication (MFA) or a modern IAM platform. In practice, critical gaps still hurt security posture.
In energy environments, these gaps often emerge from the need to support continuous operations. Access is provisioned across IT and OT systems for employees, field crews, and third-party vendors to keep systems running, respond to outages, or complete maintenance work. Over time, that access becomes difficult to track and validate, especially as roles change and systems evolve.
Here are some of the gaps we often see:
- Overprivileged access: Permissions accumulate across operational and enterprise systems, allowing users to retain access well beyond what is required for their role.
- Fragmented identity policies: Access controls differ across IT, OT, cloud, and SaaS environments, making consistent governance difficult.
- Unmanaged non‑human identities: Service accounts, API keys, and automated processes support critical integrations but often lack visibility and lifecycle management.
- Static access rules: Access does not adapt to operational changes, incidents, or shifting responsibilities, increasing risk during critical moments.
These gaps create an illusion of control while leaving organizations exposed at precisely the moments of highest risk.
Elevating Identity to a Strategic Priority
The idea of moving away from long-standing firewalls and VPN-centric controls can feel risky and disruptive, especially in environments where systems must remain continuously available. But the greater risk lies in clinging to outdated perimeter-based models in a world that no longer has a perimeter.
Identity must be viewed as a central part of any cybersecurity strategy. Modern IAM platforms serve as the strategic foundation for Zero Trust architectures when unified across cloud, on-premises, and hybrid environments and extended into operational systems. This lets organizations automate just-in-time access, enforce policies across IT and OT, and respond to threats in real time without slowing operations.
Energy leaders who prioritize identity at the board level gain advantages:
- Stronger risk reduction: Limit the blast radius of inevitable attacks by preventing lateral movement across interconnected IT and OT environments.
- Unified identity: Gain the visibility, auditability, and continuous compliance required to meet evolving regulatory expectations.
- Operational resilience: Ensure users have the right access when they need it, minimizing delays during maintenance, restoration, and day-to-day operations.
- Futureproofing: Enable secure integration of new technologies, third-party access, and evolving digital initiatives without introducing unmanaged risk.
The hesitation to move beyond traditional security models is understandable, especially in complex environments where availability and safety are critical. Success depends on approaching identity transformation in a way that aligns with how systems are actually used, not forcing change in a way that disrupts operations.
CTG helps organizations navigate this shift in complex, interconnected environments. We start with a comprehensive IAM assessment that spans both IT and OT systems, identifying where access decisions introduce risk or create operational friction. From there, we deliver a phased roadmap that strengthens identity controls while keeping critical systems running.
If you are ready to modernize identity and strengthen cyber resilience without compromising operational continuity, CTG can help you get started. Reach out to our team today.
/1.%20Visuals/Website/Icons/x-twitter.svg){kind=icon}