State Automobile Mutual Insurance Company reported a data breach occurring between March 11 and March 31, 2021. An unknown actor exploited an insurance quote application's prefill feature to access personal information, including names, driver's license numbers, and dates of birth, of prospective customers with whom the company had no prior relationship. The company engaged a cybersecurity firm, notified law enforcement, and provided one year of complimentary identity monitoring through Kroll.