DeNexus ISA OT Cybersecurity Summit · Prague 2026
Conference Session · Sponsored by ISAGCA

OT Cyber Insurance & Risk Transfer:
Right-Sizing Coverage Using Evidence, Not Guesswork

A joint asset-owner and underwriter session on how quantified OT loss scenarios turn the renewal conversation from gut feel into evidence — and how to size coverage you can actually defend to your board.

Event
ISA OTCS 2026
Dates
June 17–18, 2026
Location
Prague, Czechia
Presented by
José Seara
José Seara
Founder & CEO, DeNexus
Rébiah Bardot-Girard
Rébiah Bardot-Girard
Head of Cyber Risk Consulting Services, AXA XL
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15–25%
Premium differential for organizations bringing quantified evidence
$356M
Disclosed OT cyber losses, Clorox (2023 10-Q)
€17.3M
Modeled loss in the session's ransomware-on-DCS worked example
3
Decisions in sequence: Mitigate · Retain · Insure

What this talk covers

Two perspectives on the same problem — the asset owner who has to defend a renewal, and the underwriter who has to price the risk. The deck walks through the evidence that changes the conversation for both.

01

The broken status quo

Why OT cyber coverage is still bought on instinct — sized by peer benchmarks, not actual loss exposure, with exclusions discovered after the claim.

02

Mitigate → Retain → Insure

The decision sequence that brings clarity: reduce what you can, retain what you can afford, and transfer only the residual tail risk.

03

The four-input method

How threat profile, asset exposure, business impact, and OT recovery combine into a financial loss scenario with a confidence range.

04

A worked example

Ransomware on a DCS at an €800M manufacturer — built step by step from blast radius to a defensible total exposure figure.

05

The underwriter's view

From AXA XL: what creates friction, what underwriters ask for and rarely get, and what actually changes the pricing conversation.

06

Sizing your coverage

Turning named loss scenarios into coverage limits and retention levels you can put in front of a board with evidence behind every number.

Built for the people in the room at renewal

  • CISOs & OT security leaders who need to translate technical risk into financial terms their board and insurer accept.
  • CFOs & risk managers setting retention levels and approving coverage they can defend with evidence.
  • Underwriters & brokers pricing industrial cyber risk who want better evidence from the asset owner side.
"The question is no longer whether to buy cyber insurance. It's whether what you've bought actually covers your risk."
— From the session, ISA OT Cybersecurity Summit 2026

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