# DARPA Selects Xint for AI Security Research

On September 29, 2026, the Defense Advanced Research Projects Agency (DARPA) selected Xint to research autonomous AI application-security analysis for messaging applications used across the Department of War. The announcement provides no award value, contract number, solicitation details, or procurement contact. Xint previously participated in DARPA’s $29.5 million AI Cyber Challenge, a two-year competition that began in 2025; that competition funding is separate from the newly announced research effort.

- The work signals DARPA interest in automated security analysis of source code and binaries, particularly for software used across the Department of War.
- Companies with relevant AI-enabled application-security capabilities can assess their fit for potential DARPA follow-on research and related cybersecurity opportunities; no specific solicitation or bid deadline is identified in the announcement.
- Procurement teams should distinguish the new research selection from the AI Cyber Challenge: the announcement does not disclose a value for Xint’s research effort or establish that Xint received the competition’s full $29.5 million.

**Jurisdictions:** federal
**Industries:** Defense & Military, Information Technology
**Topics:** Cybersecurity, Artificial Intelligence
**Published:** October 01, 2026

### Government Entities
- Defense Advanced Research Projects Agency (DARPA)
- Department of War (DoW)

### Vendors
- Xint (Selected research performer)
- Theori (Parent company of Xint)

### Sources
- [DARPA chooses Xint.io to research source code vulnerabilities - Intelligence Community News](https://intelligencecommunitynews.com/darpa-chooses-xint-io-to-research-source-code-vulnerabilities/) - Intelligence Community News