Architecture-driven OT-security in zero time.
PRISM Use Case: Ready When the Inspectors Walk In
“To compete in the grid market, our MUSE ultracapacitor energy storage platform needed to meet many electrical, mechanical, environmental, and cyber requirements. Using PRISM, Risk Aperture assessed our multi-tier control architecture against all 105 requirements across four international frameworks, and PRISM delivered a complete, defensible compliance package in approximately 33 man-hours — work we had expected that could take months. The quality and speed of the work supported our approval to customers as a supplier and helped unlock a large opportunity.” — Chad Hall, President, IOXUS
The Moment That Mattered
IOXUS had a working prototype of an ultracapacitor energy storage platform on the floor—fully assembled, powered, and operating as designed.
At the same time, a major European transmission system operator, together with its global prime contractor, scheduled an on-site visit to evaluate the system in person. They weren’t coming to review plans or promises. They were coming to see a live system, and the cybersecurity posture had to be ready when they arrived.
Not in progress. Not planned. Ready.
If the OT-security story didn’t hold up under direct scrutiny, the evaluation would stall—and with it, any realistic path forward.
The Gate
For grid-connected systems, OT-security compliance is not a checkbox exercise. It is a gate.
Before IOXUS could move forward commercially, MUSE needed to satisfy a utility-grade OT-security review covering more than 100 requirements across multiple overlapping frameworks, including IEC 62443, IEC 62351, ISO/IEC 27001/27002, and utility-specific OT-security controls.
All of these requirements applied to a four-tier, IEC 61850-based control architecture—exactly the kind of environment where generic compliance tools and IT-centric approaches tend to fall apart.
While this review involved inspectors physically walking the floor, the same gate appears in many forms: customer audits, utility questionnaires, regulatory submissions, and prime-contractor reviews. The format changes. The outcome does not.
It is always binary.
Accepted or rejected.
IOXUS did not have the luxury of a slow, iterative compliance effort.
The PRISM Approach
Risk Aperture brought in PRISM to address the problem at its source.
Rather than starting with templates or checklists, PRISM began with the actual system architecture. It analyzed how the system was built and operated, normalized OT-security requirements across all applicable frameworks simultaneously, and mapped each requirement directly to real system components and trust boundaries.
In doing so, PRISM surfaced critical compliance gaps early—long before they could become on-site surprises—and generated a complete, internally consistent OT-security documentation package aligned to the live prototype on the floor.
As engineering details were clarified and assumptions refined, PRISM allowed updates to be made rapidly without breaking traceability or introducing inconsistencies across documents.
What IOXUS expected to take months was completed in hours.
The Breakthrough
Going into the effort, IOXUS anticipated a six-month OT-security engagement—one that would consume hundreds of hours across external consultants and internal engineering teams, carry substantial cost, and still risk missing the on-site review deadline.
Instead, PRISM changed the math.
In approximately 33 man-hours, Risk Aperture delivered a complete, utility-grade OT-security documentation package aligned to the live system prototype. Work IOXUS reasonably expected to take six months of consulting and internal effort was completed in days, at a fraction of the cost, and in time for the on-site review.
By the time the inspectors arrived, the cybersecurity posture was clear, defensible, and aligned to how the system actually worked.
The Outcome
Being ready at that moment changed everything.
The OT-security gate required for supplier approval was cleared. IOXUS was recognized as a technical leader in the evaluation. Clearing that gate helped unlock an initial multi-system revenue opportunity.
PRISM didn’t sell systems.
It removed the barrier that made selling possible.
Why This Matters
In regulated OT environments, success isn’t defined by innovation alone. It’s defined by whether a system can withstand scrutiny when it matters most. PRISM is built for that moment.
PRISM turns OT-security from a last-minute scramble, a documentation bottleneck, or a deal-killing surprise into a controlled, architecture-driven process that teams can repeat as systems evolve, markets expand, and new reviews emerge.
The Bottom Line
PRISM helps teams walk into high-stakes technical reviews ready—and clear the gate that matters.
Whether that gate is market access, contract eligibility, regulatory approval, or insurability, the stakes are real, and always high.
Call to Action
If OT-security compliance stands between your product and the market, PRISM helps you identify the real blockers and remove them with confidence.