For the report, Marsh McLennan paired its extensive proprietary dataset of cyber claims with the results from Marsh Cybersecurity Self-Assessment (CSA) questionnaires, which are composed of hundreds of questions and responses from individual organizations. When combined, the two datasets allow for deep insights into which cybersecurity controls have the greatest effect on the likelihood of an organization experiencing a cyber event. Such innovative use of data and analytics can help companies identify which controls to prioritize. In turn, this can help position an insured favorably during cyber insurance underwriting.