A recent report reveals on average, a major cyber incident resulted in a 9 percent decrease in shareholder value in the year following the event. 

The global 2023 Cyber Resilience Report, published by Aon plc, is based on proprietary client data from 2,946 client organizations in Asia Pacific, EMEA, Latin America, North America and the UK in 2020 and 2022. The study focuses on six areas of risk — cyber, insider, operational, reputational, supply chain and systemic — in the finance and insurance, healthcare and manufacturing industries.

Key report highlights

• Ransomware events decreased 16 percent from Q3 2022 to Q4 2022, but data from the cyber and errors and omissions insurance marketplace showed an uptick in Q1 2023.
• Two in five companies reported a lack of security operations center controls
• There was a 38 percent increase in ransomware claims from Q4 2022 to Q1 2023.
• The overall cyber risk score for healthcare clients improved from 2.6 to 2.8, on a scale of 1 to 4. In 2022, for enterprise and global clients in healthcare, the overall risk profile improved from “basic” to “managed” with more than 80 percent of the companies reporting scores of 2.5 or higher.