Chubb

Frankfurt – September 09, 2026 -- Cyberattack frequency against European mid-sized companies fell to a five-year low in 2025, yet the average claim value tripled between 2020 and 2025, according to Chubb's Cyber Claims Report 2026.

Claim frequency drops while financial severity climbs sharply

Chubb's data shows that while the number of cyber incidents affecting mid-market firms stabilized and declined to its lowest point in five years during 2025, the cost per claim has risen threefold over the preceding five-year period. The insurer attributes the gap partly to artificial intelligence, which is simultaneously helping companies detect vulnerabilities and enabling more sophisticated malicious use of technology that accelerates the scale of exposure.