Top all-time · #19071
John Schindler
Personal blog · topsecretumbra.substack.comsecuritypolitics
John Schindler writes TOP SECRET UMBRA, a personal blog at topsecretumbra.substack.com about security and politics. Since 2020, 4 different Hacker News readers have linked it 4 times. It is still writing: the last post was on 2026-11-02, and you can follow it by feed.
Too few sampled comments (1) to say how often HN recommends it.?
Why HN links it
HN readers link John Schindler's Substack for intelligence-history writing, such as a piece on the secret history of "find the Yeti" expeditions allegedly used as cover for intelligence operations.
Summarised by Claude from a sample of 1 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
A Counterintelligence Perspective on Espionage, Terrorism, Deception and Propaganda.
What Hacker News says?
Somewhat relatedly, there is a pretty plausible theory that some “find the Yeti” expeditions were in fact cover for operations by my country’s intelligence services to sabotage China. See e.g., https://topsecretumbra.substack.com/p/the-secret-history-of-...
Comment linking /p/the-secret-history-of-bigfoot-and
on “A new Bigfoot documentary helps explain our conspiracy-minded era”Submitted China Is Spying Its Way to Space Dominance as a story · 3 points
HN discussionSubmitted How Terrorists, and Spies Exploit Luxury Watch Network to Launder Millions as a story · 1 points
HN discussionSubmitted Stop Blaming Foreigners as a story · 1 points
HN discussion