Disclosure Foundation

News

NSA Releases Hundreds of Pages of Formerly Top Secret UMBRA UAP Records After Disclosure Foundation FOIA Appeal

May 18, 2026

The National Security Agency has produced hundreds of pages of historical UAP-related records following a Freedom of Information Act appeal by the Disclosure Foundation. Many of the records were previously classified "TOP SECRET UMBRA," one of the most sensitive classification markings associated with signals intelligence.

The Disclosure Foundation was proud to previously announce our Freedom of Information Act and Declassification Review campaign as part of a wider legal strategy aimed at bringing Disclosure efforts closer to the courtroom. We are excited to share progress in those efforts.

The story behind this request might be familiar to FOIA researchers. Back in 1980, a Freedom of Information Act lawsuit was brought against the National Security Agency on behalf of a citizen watchdog group to compel production of UFO-related information in the NSA's possession. At the time, the NSA vigorously defended the lawsuit in court. To support its legal defense against producing UFO-related documents, the NSA's Chief Policy Officer, Eugene Yeates, submitted "in camera" affidavits to the court. "In camera" is a legal term that refers to circumstances where there is a dispute about the production of a document, and the presiding judge privately reviews the disputed document and makes a decision based on that private viewing.

While the secretive "Yeates Memo" has been declassified and available to the public since 2009, the actual information and collection data referenced in that memo have never been released. When our legal team requested the underlying supporting material that was used to produce Mr. Yeates' classified memo to the court, the NSA denied the request in its entirety. We challenged that denial, and after a lengthy appeal, the NSA appeals authority acknowledged that its blanket denial was improper.

We are pleased to report the production of hundreds of pages of documents spanning many prior decades, nearly all of which were previously classified as "TOP SECRET UMBRA." We release them to the public here in their entirety.

Despite this historic document release, the NSA still asserts considerable redactions and exemptions for UAP-related material that dates back to the 1960's. Our legal team is completing its review of the NSA's asserted exemptions, and we will mount all appropriate challenges to these withholdings.

Read the Full NSA Production

The full NSA FOIA production is embedded below and available for download.

Loading viewer…

"It is simply unacceptable for security classification exemptions to remain on government documents that pre-date the Civil Rights Act. We are committed to having the courts review the legitimacy of these redactions and holding these agencies accountable to the public transparency that Congress intended." — Hunt Willis, Chief Legal Officer

We will continue to challenge the improper use of security classification exemptions that withhold historical information on this topic from the public. To that end, this week the Foundation submitted significant Mandatory Declassification Review requests for the declassification of briefings on UAP assessments that federal law mandated Congress receive. We are proud to pursue this initiative and utilize all remedies afforded by Congress to bring transparency on this profound issue to the public.

Why This Release Matters

This production is significant not because every page contains a dramatic revelation. Many pages are heavily redacted. Some visible portions are fragmentary. Some entries include conventional analytic caveats, including references to objects that may have been "probably balloons."

That is exactly why the release matters.

These are not casual newspaper clippings or third-hand anecdotes sitting in a miscellaneous file. The records were held by the National Security Agency, the U.S. intelligence agency responsible for signals intelligence, or SIGINT. NSA describes SIGINT as foreign intelligence collected, processed, analyzed, and disseminated for foreign intelligence and counterintelligence purposes, including support to policymakers and military forces.

In plain English: NSA is the agency that listens, intercepts, analyzes, and reports on foreign signals and communications. When UAP-related observations appear inside NSA signals intelligence channels, the public should understand that this is not the same as a local police report or a civilian sighting form. It means the U.S. intelligence system collected, retained, and classified information related to unidentified anomalous phenomena in highly sensitive intelligence streams.

What "TOP SECRET UMBRA" Means

Many of the records in this production carry the marking TOP SECRET UMBRA.

"Top Secret" is the highest baseline national security classification level. Under historical classification standards, Top Secret information is information whose unauthorized disclosure could reasonably be expected to cause "exceptionally grave damage" to national security.

"Umbra" is a codeword historically associated with highly sensitive intelligence compartments. The National Archives' Information Security Oversight Office specifically warns that codewords such as "Umbra," "Talent-Keyhole," "Ruff," or "Gamma," when combined with Secret or Top Secret markings, indicate information considered particularly damaging to national security if improperly released, regardless of the age of the records.

That context is essential. The importance of this release is not that every visible line proves a particular theory about UAP. The importance is that the U.S. government treated some UAP-related reporting as intelligence of extraordinary sensitivity.

What Is Visible in the Production

The production contains numerous heavily redacted pages, but visible portions show repeated references to:

  • Radar tracking of unidentified flying objects
  • Visual sightings
  • Objects moving across large distances
  • Altitude and heading information
  • References to objects assessed in some entries as "probably balloons"
  • Foreign or military reporting channels that remain substantially redacted
  • Declassification markings under Executive Order 13526
  • Redactions citing Public Law 86-36 / 50 U.S.C. 3605, a statute frequently used to protect NSA organization, functions, activities, and sensitive sources and methods

The visible structure of the records is also important. These are formatted intelligence messages, not narrative essays or later summaries. The pages include message identifiers, classification markings, redaction justifications, and operational-style reporting language.

Anomalous Cases That Require Further Explanation

Several of the most readable entries in this production include the parenthetical assessment "probably balloons." But an initial review of the full 334-page production reveals entries that tell a very different story — entries where no conventional explanation is offered, where the described characteristics are plainly inconsistent with balloon activity, and where the surrounding context is far more heavily redacted. These include:

Objects displaying controlled behavior. Multiple entries describe objects with two yellow lights, flying at low altitude, that changed heading from north to west — silently (p. 314). A separate entry describes an object "going up and down vertically" that witnesses assessed as "impossible to be an aircraft," moving at high speed with "white-bluish luminous light" and "erratic turning movements" (p. 330).

Objects with physical characteristics inconsistent with conventional explanations. One entry, classified SECRET LARUM, describes a UFO as "spherical or disc-like in form with an established color brighter than the sun, with a diameter of one-half the visible size of the moon," observed above cloud cover with specific bearing and azimuth data recorded (p. 329). Another describes an "elongated ball of fire moving at high rate of speed" that, after covering some distance, "split into three balls of fire" (p. 333). A third entry documents an object with "luminous radiation of 22 meters extending in a spiral pattern" that gained altitude without noise (p. 322).

Military scrambles in response to unidentified objects. At least eight entries document fighter aircraft being scrambled to intercept UFOs. In the most dramatic case, 13 MIG fighters were dispatched to chase a single unidentified object (p. 236). Other entries describe military reactions to groups of objects — 72 at once (p. 63), 23 at once (p. 71) — at altitudes exceeding 70,000 feet.

Multi-witness sightings reported through intelligence channels. One entry, classified SECRET SAVIN, documents multiple independent observers reporting the same silent, direction-changing lights at approximately 2,000 feet distance (p. 315). The structured format — specific times, specific bearings, corroborating witnesses — reflects trained intelligence reporting, not casual observation.

Page 314 — Two yellow lights, changed heading, no noise
Page 330 — Object moving vertically, "impossible to be an aircraft"
Page 329 — "Spherical or disc-like," brighter than the sun
Page 333 — Elongated ball of fire that split into three
Page 322 — Luminous radiation of 22 meters, spiral pattern
Page 236 — 13 MIG fighters chased one UFO
Page 63 — 72 objects tracked, MIG reaction
Page 71 — 23 objects tracked, MIG reaction
Page 315 — Multi-witness sighting, silent direction-changing lights

The contrast in the production is stark. Entries assessed as "probably balloons" retain their analytical context: times, altitudes, headings, assessments. Entries describing objects with disc-like shapes, extreme speeds, luminous emissions, vertical oscillation, directional changes, and silence — objects that prompted major military responses — have those same details stripped away under classification exemptions that remain in force decades later.

The question is why UAP-related reporting, including radar and visual observations, was collected in signals intelligence channels, classified at extremely high levels, retained for decades, and still redacted today — especially the entries that describe something other than balloons.

Why the Redactions Matter

The production does not simply release old records in full. Many pages remain heavily redacted, with visible exemption markings including provisions under Executive Order 13526 and references to Public Law 86-36 / 50 U.S.C. 3605.

Executive Order 13526 governs classified national security information. It also establishes the framework for automatic declassification of historically valuable records, generally after 25 years, while allowing certain categories of information to remain classified longer under specific exemption criteria.

That does not mean every redaction is illegitimate. Intelligence sources and methods can remain sensitive. Foreign relationships can remain sensitive. Technical collection capabilities can remain sensitive.

But the pattern visible in this production raises a pointed question. When an entry describes an object at 95,000 feet that triggered a military fighter response, and the operational details remain classified more than four decades later, "national security" cannot serve as an unexplained incantation. When 13 fighters were scrambled to chase a single unidentified object and the details of what they found are still withheld, the public is entitled to ask what, specifically, is being protected — and from whom.

The age of these records makes the question unavoidable. If UAP-related material from the 1960s and 1970s is still being withheld today, the government should be required to justify those withholdings with specificity. The fact that mundane entries have been substantially unredacted while anomalous entries remain classified suggests a pattern that warrants judicial scrutiny.

This Is What Transparency Litigation Is For

The Freedom of Information Act was designed to give the public a lawful path to challenge government secrecy. In this case, the NSA initially issued a blanket denial. After appeal, the agency's own appeals authority acknowledged that approach was improper and produced hundreds of pages.

Without the appeal, these records may have remained withheld. Without continued legal pressure, the remaining redactions may never receive meaningful review. Without public release, the broader implications of these records would remain confined inside government filing systems.

This is why the Disclosure Foundation's legal strategy is focused not only on public awareness, but on using the tools Congress has already provided: FOIA, Mandatory Declassification Review, administrative appeals, and, where appropriate, court review.

What This Release Does and Does Not Show

This release does not answer every question about UAP. It does not prove that any particular UAP case involved non-human technology. It does not establish that every object referenced in the production was anomalous.

It does show something narrower, but extremely important:

The National Security Agency possessed historical UAP-related records in highly classified signals intelligence channels. Those records include references to radar tracking and visual sightings. They include entries describing objects with physical characteristics, speeds, and behaviors plainly inconsistent with conventional explanations — objects that triggered military intercept responses. Many were marked TOP SECRET UMBRA. Many remain heavily redacted despite their age. And those records were only produced after the Foundation challenged NSA's initial denial.

The visible entries also reveal a pattern: where the government felt comfortable offering a mundane assessment, the context was left readable. Where the reported phenomena defied easy explanation, the surrounding details were removed. That selective disclosure is itself a form of information — and it is exactly the kind of pattern that courts are equipped to evaluate.

For a public conversation too often trapped between ridicule and speculation, that is a serious evidentiary development.

What Happens Next

The Disclosure Foundation's legal team is reviewing the NSA's asserted redactions and exemptions. Where the Foundation determines that withholdings are improper, overbroad, or insufficiently justified, it will pursue appropriate challenges.

The Foundation has also submitted significant Mandatory Declassification Review requests seeking the declassification of UAP assessment briefings that federal law required be provided to Congress.

This release is therefore not an endpoint. It is a step in a broader legal and public transparency campaign.

The public deserves to know what the government has collected, what it has withheld, and whether decades-old secrecy claims still withstand scrutiny.