POST HOLDINGS, INC.

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Post Holdings notified the Idaho Attorney General of a data security incident where unauthorized access to its network was detected on August 20, 2026. The investigation determined that personal information, including first name, last name, and driver's license number, may have been compromised for one Idaho resident. Post Holdings retained cybersecurity experts, secured its network, changed passwords, strengthened password requirements, and implemented stricter multi-factor authentication. The affected individual was offered 12 months of credit monitoring and identity theft protection.

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