Did the U.S. Government Seize Bitcoin Through a Hack?

By chillipepe | Chillipepes Hot logs | 21 Nov 2025


A strange twist has emerged around the 127,000 BTC that the U.S. government recently announced it had taken into custody. Several blockchain analysts noticed that some of the wallet addresses match those flagged two years ago in a security report that exposed a critical weakness in how certain Bitcoin wallets were generated. That overlap has sparked a simple but uncomfortable question. Did the government legally seize those coins or quietly exploit a known flaw to take control of them?

Back in 2023, a report called “Milk Sad” shook the crypto security world by revealing how a popular wallet generation tool produced dangerously predictable private keys. The issue came from Libbitcoin Explorer, a command line tool that relied on the Mersenne Twister generator for randomness. Instead of using cryptographically secure entropy, it seeded the generator with nothing more than a 32 bit system timestamp. That meant every “random” key it produced existed inside a tiny, guessable range. Attackers could brute force thousands of wallets with basic hardware, and many did.

These were not isolated user mistakes. They were structural flaws built into a widely referenced tool. Because the same tool appeared in books like Mastering Bitcoin and various developer guides, countless users may have unknowingly created wallets that were vulnerable from day one. Many of those wallets were eventually drained by attackers using the exact weakness the report described.

Now the story has taken a new turn. Some of the addresses the U.S. government claims to control overlap with those mentioned in the Milk Sad analysis. No official explanation has clarified how those coins were obtained. That leaves two paths on the table. One is a traditional legal seizure that simply happens to involve compromised wallets. The other is a far more controversial idea that government agencies may have taken advantage of the publicly known flaw to gain access before anyone else could.

Whichever scenario is true, the irony is hard to ignore. Bitcoin was designed around the principle that private keys equal absolute control. Yet one weak random number generator flattened that entire promise for thousands of users. And if the government really did use the same flaw that hackers used, the line between “law enforcement action” and “offensive cyber operation” becomes blurry in uncomfortable ways.

What the Milk Sad story ultimately shows is that crypto security is only as strong as the tools people use to generate their keys. Two years after the vulnerability went public, the fact that some of those very wallets ended up in government vaults raises a question that is still unanswered. Were those coins seized, or were they recovered through a hack that nobody wants to openly acknowledge?

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chillipepe
chillipepe

Just a frog with crypto thoughts


Chillipepes Hot logs
Chillipepes Hot logs

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