HII Notifies States and Individuals of a 2022 Alion Data Exposure

NEWPORT NEWS, Va., (April 26, 2023) – HII (NYSE: HII) recently notified more than a dozen state agencies and more than 43,000 individuals about a data exposure event within the Alion Science and Technology network in early 2022. HII acquired Alion in August 2021.  A thorough forensic investigation found no evidence of theft or misuse of data because of the event. In addition, the event had no impact on HII operations, including at its two shipyards.

HII sent the notifications to agencies and individuals in cases where personally identifiable information may have been exposed, in accordance with all state laws. Notified individuals may have been employees, candidates, contractors, vendors or others who interacted with Alion and its vendors prior to March 2022.

Upon discovering the event, HII took immediate steps and successfully secured the servers in question by May 2022.  HII also promptly began a full investigation, engaging an independent cybersecurity law firm who retained Mandiant, a world-class forensics investigator, and Haystack ID, a renowned eDiscovery vendor. The investigation, completed last month, found that although data may have been accessible, there was no evidence that any data was transferred from the servers or misused.

HII has partnered with Experian, a safe and globally recognized credit reporting agency, to provide a complimentary membership of Experian’s® IdentityWorksSM to potentially affected individuals. This product provides individuals with credit monitoring, identity theft detection and resolution of identity theft. Recipients of the notification who have questions may contact [email protected].



HII is a global, all-domain defense provider. HII’s mission is to deliver the world’s most powerful ships and all-domain solutions in service of the nation, creating the advantage for our customers to protect peace and freedom around the world.

As the nation’s largest military shipbuilder, and with a more than 135-year history of advancing U.S. national security, HII delivers critical capabilities extending from ships to unmanned systems, cyber, ISR, AI/ML and synthetic training. Headquartered in Virginia, HII’s workforce is 43,000 strong. For more information, visit:


Danny Hernandez
[email protected]
(202) 264-7143

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