# GAO Reviews DHS Security Incidents

The Government Accountability Office is reviewing three security incidents involving the Department of Homeland Security’s Homeland Security Information Network from 2023 through 2026. The review includes a 2026 intrusion and earlier access-control errors, and may examine how DHS notified Congress. The article identifies no solicitation, contract value, or report release date, but findings could point to remediation needs for HSIN security and operations.

- Contractors supporting HSIN cybersecurity, identity and access management, or incident response can assess how their capabilities address the types of incidents under review and potential remediation requirements.
- Because the review is ongoing and may scrutinize congressional notification, firms supporting DHS incident reporting or security operations may find the findings relevant to their work; no procurement action or deadline is specified.

**Jurisdictions:** federal
**Industries:** Information Technology
**Topics:** Cybersecurity
**Published:** October 09, 2026

### Government Entities
- Government Accountability Office (GAO)
- Department of Homeland Security (DHS)
- U.S. Senate Select Committee on Intelligence (SSCI)

### Sources
- [Watchdog to examine summertime hack of DHS information network, other incidents - Government Executive](https://www.govexec.com/oversight/2026/10/watchdog-examine-summertime-hack-dhs-information-network-other-incidents/416518) - GovExec.com