Global cyber insurance premiums top $16 billion as large-business claims surge

Global cyber insurance premiums exceeded $16 billion in 2025, with the U.S. market rebounding to $9.46 billion even as claims severity climbed for large companies. Beinsure says the market is entering a slower-growth phase, shaped by ransomware, AI-enabled attacks and rising systemic risk.

Why it matters: - Cyber insurance is still growing, but the market is shifting from rapid expansion to tighter underwriting and more selective pricing. - Large-business losses are rising fast, which could pressure insurer margins even as claims frequency improves. - International markets are becoming a bigger growth source as U.S. competition intensifies.

What happened: - Global cyber insurance premiums surpassed $16 billion in 2025, according to Beinsure's analysis of market data from the National Association of Insurance Commissioners, AM Best, Chubb and Coalition. - U.S. direct written cyber premiums rose 3.5% to $9.46 billion in 2025 after a contraction in 2024. - Beinsure said the market had expanded at an annual rate of about 32% between 2017 and 2022. - Global premiums doubled from 2017 to 2020 and again from 2020 to 2022.

The details: - U.S. cyber premiums included $7.46 billion from domestic insurers and about $2 billion from alien surplus lines insurers. - The NAIC's 2026 Cybersecurity Insurance Market Report shows domestic premiums climbed from $2.75 billion in 2020 to $7.46 billion in 2025, equal to compound annual growth of about 22%. - Chubb remained the largest domestic U.S. cyber insurer with $629.2 million in direct written premiums and an 8.44% market share. - Beazley moved from 16th to second place with $570.9 million, or 7.65% of domestic premiums. - St Paul Travelers ranked third at about $544 million, followed by Sompo at $342 million and Tokio Marine Holdings at $319 million. - The five largest insurers controlled 32.24% of domestic U.S. cyber premiums. - The top 10 insurers accounted for 51.03% of domestic premiums. - The 20 leading insurance groups represented 76.82% of domestic premiums. - Chubb reported a 58.81% loss ratio including defense and cost containment expenses. - Beazley reported a 16.28% loss ratio. - Arch Insurance reported a 41.60% loss ratio. - AIG reported a 62.28% loss ratio. - Beinsure said underwriting performance varied widely across insurer portfolios, and loss ratios alone do not determine overall profitability. - AM Best kept a stable outlook for the global cyber insurance segment, citing demand, intermediate-term profitability, improving cybersecurity practices and more reinsurance and alternative capital. - AM Best expects Europe, Latin America and developed Asian economies to increase their share of global premiums. - Small and medium-sized enterprises remain a key growth opportunity as cyber insurance penetration rises outside the U.S. - Beinsure said ransomware, business email compromise, funds transfer fraud and systemic cyber risks remain major concerns. - Peter Sonner said AI-enabled cyberattacks and autonomous systems make loss estimates harder, especially when multiple insured organizations rely on the same technology providers.

Between the lines: - The market is still healthy, but pricing power is no longer as strong as it was during the hard-market cycle. - The data suggest a split market: large corporate accounts are driving bigger losses, while smaller policyholders are producing lower average severity. - That divergence matters for insurers because portfolio mix now has a bigger impact on profitability. - Coalition's broader claims dataset shows a different pattern from Chubb's large-enterprise book, underscoring how company size changes loss trends. - AI and shared digital infrastructure could create correlated losses across many policyholders at once, raising accumulation risk for carriers and reinsurers.

What's next: - Beinsure expects premium growth to continue, but at a more moderate pace. - International premium growth is likely to become more important as demand expands outside the U.S. - Insurers are likely to focus more on pricing large corporate risks, limiting ransomware exposure and managing systemic accumulation. - Beinsure says future profitability will depend more on underwriting discipline than on broad market growth.

The bottom line: - Cyber insurance remains a growth market, but rising large-loss severity and AI-linked systemic risk are making it harder to scale profitably.