National Presto Industries, Inc.

National Presto Industries, Inc. notified the NH Attorney General of a data security incident. On or around March 1, 2025, the company became aware of unauthorized activity in its computer systems. An investigation confirmed that personal information of one New Hampshire resident may have been accessed. The company secured its systems, engaged forensic investigators, and notified the affected resident on April 25, 2025, offering credit monitoring. The investigation is ongoing.

National Presto Industries, Inc. reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-04-25. 7 Massachusetts residents were affected.

National Presto Industries, Inc. notified Nebraska residents of a data breach discovered in March 2025 involving unauthorized access to personal information, including names, Social Security numbers, and financial account data. The company engaged forensic investigators, secured its network, and offered complimentary credit monitoring via Equifax. The investigation concluded in April 2025, and the incident status is contained.

National Presto Industries Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2025-03-01 and was reported on 2025-04-25. 6 Indiana residents were affected. 7,879 individuals affected in total.

On March 1, 2025, National Presto Industries experienced a system outage caused by a cybersecurity incident. The Registrant activated its incident response team and engaged external cybersecurity experts. The incident temporarily impacted shipping and receiving, some manufacturing processes, and back office functions. Forensic investigation is ongoing; no conclusive evidence on nature, scope or impact has been identified. The incident could have a material impact on financial condition and results of operations.