The Defense Advanced Research Projects Agency (DARPA) is seeking information from industry developers and academic institutions regarding techniques and tools for assessing vulnerabilities in AI-enabled systems relevant to the Department of Defense (DoD). The objective of this Request for Information (RFI) is to gather insights on current and emerging methods that evaluate threats from various adversarial perspectives while considering the entire AI deployment pipeline. This initiative is crucial for addressing the evolving challenges associated with AI technologies in defense settings, particularly in enhancing the robustness of AI systems against adversarial threats. Responses to this RFI, designated DARPA-SN-25-28, are due by February 28, 2025, at 5:00 PM ET, and should be submitted following specified security protocols for unclassified or classified information. Interested parties can contact the BAA Coordinator at DARPA-SN-25-28@darpa.mil for further details.