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Notes · August 2, 2026 — Page 3
Notes for August 2, 2026
Decrypting a Water Monitor’s Radio Signal
Paul Kendall’s breakdown of intercepting Flume water-meter radio traffic—showing AES-128 was not broken, but a weak key-derivation scheme left only 44 unknown bits that a GPU recovered for about $10 in cloud cost.
Inspired by waveformsecurity.com · Paul Kendall
AI’s Most Valuable Startups Are Barely Participating in Science
Science reports that more than half of the world’s billion-dollar AI startups have produced no qualifying scientific paper or preprint—arguing extraordinary technical claims need evidence outsiders can examine, not faith in product demos.
Inspired by science.org · Science