Café Bitcoin | Guy Swann and Yan Pritzker on Coldcard, the Asymmetry of Defense, and Privacy | Day 16 of 50

Guy Swan on learning the wrong lessons. The takeaway circulating is "go with the biggest company," which forgets Mt. Gox and FTX and everything else proving size is not safety. His analogy: when a libertarian politician betrays you, libertarianism didn't break, you got scammed. He wants a rule that works forward. His sharpest point: "I don't want a rule that only works in hindsight." Anyone can now point at the source-available license. The useful question is what indicator predicts the next failure before it happens. His own heuristic broke in both directions. He had trained himself not to dismiss builders for being abrasive, and now concludes that for security specifically, a maintainer who attacks people reporting problems is telling you something. Yan Pritzker paired it with the engineering version: without a culture of safety, people stop surfacing mistakes. James O'Beirne's tripwires. He seeded wallets on-chain carrying graduated entropy over broken Coldcard seeds, five dice rolls, ten, fifteen, one and two-word passphrases, as bait. The bare seed was swept within an hour and nothing else has moved, mapping attacker capability live. The red team's numbers. Rob Hamilton and Calle have scanned over 300 repos and spent roughly $40,000 on tokens in two days, finding critical vulnerabilities at about one per person per hour. OpenSats is now funding most of that budget. Every company needs an agentic security pipeline. Yan's argument: agents are non-deterministic, so one scan proves nothing. The real work is harnesses that find, test, distill and reproduce on a loop. Swan has been building this for six to twelve months. The asymmetry is the whole problem. Attackers need one vulnerability, defenders need all of them, and the economics favor the attacker. Some have been paying up to 90% of stolen funds in fees to get transactions mined quickly. A fake Coldcard desktop app is circulating. No such application has ever existed. Trezor reported a phishing spike since disclosure, and a counterfeit Wasabi wallet reached an app store. Nobody legitimate asks for recovery words, and unsolicited migration instructions are always hostile. Yan's read on whether this repeats. He calls the bug exotic: entropy wasn't weak, it was switched off entirely. Scans across the popular hardware wallets show correct and consistent entropy use, so he thinks this specific failure is unlikely to recur elsewhere. Government overreach, the other half of the show. Suz on Liechtenstein's beneficial ownership register, roughly 31,000 entities, built in 2021 for EU anti-money-laundering compliance and now breached and offline. Yan on the Bank Secrecy Act's 1970 threshold, never inflation-adjusted, capturing dramatically more data for near-zero measured effect.