Former U.S. government policy advisor who authored the 'Immaculate Constellation' report, alleging the existence of a DoD Unacknowledged Special Access Program that uses AI to aggregate military and intelligence-community imagery and sensor data related to UAP. Brown submitted written testimony to the House Oversight Subcommittee via journalist Jeremy Corbell in 2024 and publicly identified himself as the document's author in April 2025.
Matthew Brown served as a U.S. government policy advisor before compiling evidence of a parent USAP called 'Immaculate Constellation,' which he said functions as a centralized AI-driven repository for UAP sensor data. When he brought his findings to supervisors he was directed to delete the files; he subsequently sought whistleblower protection and provided testimony to Congress. He went public in April 2025 stating the whistleblower protection system had failed him at every step.