1. Healthcare & MedTech — 85 / 100
Healthcare remains the clearest example of how cyber risk turns into operational risk. The sector is still living in the shadow of mega-breach fallout, while regulators continue to move toward more explicit and auditable cybersecurity expectations.[5] In addition, fresh operational disruption in medtech has made the sector feel even more fragile heading into Q2 2026.
Healthcare carries elevated pressure because the sector holds highly sensitive data, third-party concentration is severe, operational disruption can impact real-world care and supply continuity, regulators are pushing toward more formalized security controls and governance discipline, and public trust damage is immediate when systems fail.[3]
The sector's ranking was reinforced by the March 2026 cyberattack affecting Stryker's operations, which disrupted order processing, manufacturing, and shipments.[2] That matters because it shows cyber events in healthcare-adjacent infrastructure are not just privacy stories. They can directly impair product flow and operational continuity. The Change Healthcare breach, impacting 192.7 million people, remains the defining proof point of mega-breach scale in this sector.[4]
2. Financial Services — 81 / 100
Financial services enters Q2 2026 under simultaneous cyber, regulatory, third-party, and geopolitical pressure. This is a sector where regulators already expect mature controls, but current public developments show that maturity alone does not remove fragility.[8]
The sector's Q2 profile was strengthened by March 2026 reporting that U.S. banks were on heightened alert for cyberattacks amid conflict-related tensions.[6] The late-March Lloyds customer exposure story also reinforces a broader point: trust failures in financial services do not need to begin as attacks. Glitches, outages, and data exposure events can produce the same public confidence damage.[7]
Regulatory expectations are explicit and rising. Third-party oversight remains a growing source of exposure. AI supervision and disclosure discipline are becoming governance issues. Operational resilience is now treated as a board-level obligation. Geopolitical events can rapidly intensify cyber risk conditions.[9]
3. Critical Infrastructure — 78 / 100
Critical infrastructure remains one of the most consequential sectors because cyber weakness here can become public safety, continuity, and national resilience risk. The category includes water, energy, transport, and other backbone systems where disruption has outsized external effects.[10]
The ranking remains high because official U.S. infrastructure guidance continues to emphasize that sectors such as water and wastewater remain vulnerable to cyberattack, while DOE oversight findings show that even major federal energy environments are still carrying unresolved cybersecurity findings and repeat deficiencies — including 33 cybersecurity findings with 13 repeat prior-year findings and a significant deficiency tied to access controls.[11]
4. Retail & Consumer Supply Chain — 75 / 100
Retail has become one of the clearest narrative-speed sectors in the economy. When operations wobble, shelves empty, logistics break, or customer data is exposed, the market and the public react almost immediately.[14]
This sector remains high because it has already produced some of the strongest proof points of cyber-to-commercial damage. M&S and UNFI demonstrated in 2025 that cyber incidents can create material sales and profit impact — M&S projecting $400 million in costs, UNFI projecting up to $400 million in annual sales impact.[13] The March 2026 Loblaw breach keeps the category current and reminds the market that even "contained" network events can still create customer-data headlines.[12]
5. Software / AI Platforms — 72 / 100
Software and AI platforms round out the top five, not because they currently create the most physical disruption, but because they are entering an enforcement and trust-reset era. AI claims, governance practices, model accountability, and disclosure discipline are moving from marketing issues into legal and regulatory territory.[15]
The category remains elevated because regulators are increasingly signaling that AI hype without substantiation will not be treated lightly. The FTC's enforcement action against Workado for unsupported AI accuracy claims is an early proof point.[15] At the same time, the EU AI Act is creating a rising obligation framework around general-purpose AI and governance expectations.[16]