CNA vs Marsh: Technology E&O Insurance

Marsh treats tech E&O as one of its professional liability specialties and builds data center programs that combine it with property and casualty lines. CNA offers Technology E&O for technology businesses, with contract-requirement coverage.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-09-30

Areas of coverage

CNA

  • eligibility: CNA describes Technology E&O for technology businesses. Entity: CNA brand; issuing CNA subsidiary may vary by product/state Product: United States commercial insurance Jurisdiction: United States Research source scope: US specialty commercial liability Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control.company-reportedSource ↗
  • coverage: CNA says its technology E&O addresses contractual requirements and seeks to reduce coverage gaps. Entity: CNA brand; issuing CNA subsidiary may vary by product/state Product: United States commercial insurance Jurisdiction: United States Research source scope: US specialty commercial liability Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control.company-reportedSource ↗
  • services: CNA identifies responsive claims support and privacy/data-protection risk-control resources for technology clients. Entity: CNA brand; issuing CNA subsidiary may vary by product/state Product: United States commercial insurance Jurisdiction: United States Research source scope: US specialty commercial liability Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control.company-reportedSource ↗

Marsh

  • role: Marsh treats technology errors and omissions (tech E&O) as one of its financial and professional liability specialties, with dedicated attention to the technology industry, and separately names it as a building block within its data-center insurance programs. Marsh professional liability page and data-center insurance page.company-reportedSource ↗Source ↗
  • eligibility: Marsh names technology among the specialized industries its professional liability (E&O) experts serve, alongside banking, insurance and asset management, media and healthcare. Marsh professional liability page, What We Offer section.company-reportedSource ↗
  • coverage: Marsh says off-the-shelf technology E&O policies were not built for the scale and concentration of modern data centers and can leave gaps. It designs data center programs that combine technology E&O with property, casualty and other lines. Data center insurance page, Closing the gaps in conventional coverage section; describes a gap in standard tech E&O for one customer segment (data centers), not the general product.company-reportedSource ↗
  • insurer: The reviewed pages do not name a specific technology E&O insurer. Marsh professional liability and data-center insurance pages as read on 2026-09-23.not-disclosedSource ↗Source ↗

What Are the Key Differences Between CNA and Marsh Tech E&O Insurance?

Data-center programs and contractual technology coverage

Marsh identifies technology E&O as a financial and professional liability specialty and says its data-center programs combine it with property, casualty and other lines because standard forms may leave concentration gaps. CNA describes Technology E&O for technology businesses and says it is intended to support contractual requirements. A data-center operator should compare Marsh’s integrated program design with CNA’s proposed line form, focusing on shared infrastructure exposures and the exact customer contracts. [3] [5]

Specialist placement and support

CNA describes dedicated claims and risk-control support across technology and professional-liability business. Marsh describes specialist attention to technology and data-center risks but the reviewed claims do not list a comparable claims service. That is a difference in published detail, not proof that either provider lacks a service. Ask Marsh who coordinates claims across the combined program, and ask CNA whether the technology form can be coordinated with property and casualty coverage for your facility. [3] [6]

What Should You Confirm in CNA and Marsh Tech E&O Insurance Quotes?

  • Can CNA coordinate Tech E&O with property and cyber for shared data-center incidents? [3]
  • Which Marsh policy forms address data-center concentration, and who coordinates claims across the program? [5]

CNA names technology E&O and privacy-risk services; Marsh treats tech E&O as a specialty and combines it with property and casualty in data-center programs.

Sources reviewed

  1. 01
    Chubb DigiTech Enterprise Risk Management Policy — Technology E&O, Cyber and Privacy Short Form Application

    ACE American Insurance Company / Chubb · Claims-made notice p.1; §2 Nature of Operations product/service schedule pp.2–3; §7 Technology E&O pp.4–5; §9–10 current and desired coverage pp.5–6 · accessed 2026-09-16

  2. 02
    DigiTech Enterprise Risk Management

    Chubb · Coverage Synopsis > Third-Party Liability Coverage > Technology Errors and Omissions; Cyber, Privacy and Network Security Liability; footer product-summary disclaimer · accessed 2026-09-16

  3. 03
    Cyber Insurance - Cyber Risk Solutions | CNA Insurance

    CNA · Cyber, Media, Technology & Professional Liability; product sections · accessed 2026-09-28

  4. 04
    Insurance and Bonding Guidelines

    Georgia Department of Administrative Services · Professional Liability / Errors and Omissions p.6; Technology Errors & Omissions (Cyber Liability) §9 pp.7–8 · accessed 2026-09-16

  5. 05
    Data center insurance and risk management

    Marsh · Closing the gaps in conventional coverage: off-the-shelf property, casualty, and technology errors and omissions policies were not built for the scale, density, and aggregation of modern data centers · accessed 2026-09-23

  6. 06
    Professional liability

    Marsh · What We Offer: specialized industries served, including Technology · accessed 2026-09-23

  7. 07
    Glossary of Insurance Terms

    National Association of Insurance Commissioners · Professional Errors and Omissions Liability; Errors and Omissions Liability | Professional Liability other than Medical · accessed 2026-09-16

  8. 08
    Appendix J – Contractor’s Insurance Requirements, Information Technology Umbrella Contract – Manufacturer Based (Statewide)

    New York State Office of General Services · §4 Technology Errors and Omissions, printed p.6 / PDF p.6; claims-made tail note · accessed 2026-09-16

  9. 09
    Technology Errors and Omissions Insurance

    The Hartford · What Is Technology Errors and Omissions Insurance?; differences between cyber liability and errors and omissions; How Technology Errors and Omissions Insurance Works With Contracts · accessed 2026-09-16

  10. 10
    Cyber Risk for Technology Companies

    Travelers · CyberRisk Tech coverage includes… technology errors and omissions; businesses can choose cyber protection, E&O protection or both; E&O coverage helps address… errors, omissions or negligent acts in the performance of its services · accessed 2026-09-16

Ask Kearny Risk to help relate this comparison to your services and contracts.

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