NetDiligence
Annual study of cyber claims actually paid, based on data from partner insurers. Documents claim cost by company size, by cause and by component (response, business interruption, liability), with particular attention to small and mid-sized firms. A rare public source of insured-loss data.
Consolidation of several thousand closed claims voluntarily reported by cyber insurers, mainly North American. The sample reflects the insured market, making it directly relevant to pricing but not representative of uninsured entities.
Prefer over average-cost studies when calibrating insured-claim severity, especially in the SME segment. An authoritative input for a cyber actuary.