01PDFNational Security Agencyp.236
NSA's UMBRA file kept UFO reports in SIGINT channels
The May 18, 2026 FOIA production is a scanned NSA record set with TOP SECRET CODEWORD and TOP SECRET UMBRA markings across UAP-related message traffic. Readable pages move from radar tracks and probable-balloon qualifiers to silent low-altitude lights, spiral luminosity, a disc-like object brighter than the sun, and one terse line: "13 MIG'S CHASED ONE UFO." The finding is narrow but serious: NSA retained UAP reporting inside highly classified signals-intelligence channels, and much of the surrounding context remains withheld.
→ NSA's UMBRA UFO Messages