ON24, Inc. experienced a security incident in June 2021 impacting internal systems. Personal information of current and former employees and beneficiaries, including names, addresses, dates of birth, Social Security Numbers, and health insurance/benefits enrollment data, was potentially exposed. ON24 engaged third-party cybersecurity experts, notified law enforcement, contained the incident by taking systems offline, and deployed additional security measures. Affected individuals were offered 24 months of complimentary Experian IdentityWorks identity protection services.