Claude Didn't Crack Bitcoin Cryptography — It Found a Lost Wallet File Worth $395K

A viral X post claiming Anthropic's Claude 'cracked' a forgotten bitcoin wallet is missing the real story. The AI didn't break any cryptography — it helped user cprkrn search an old college laptop for a wallet backup file from December 2019, which was then decrypted using a password the owner had already written in a notebook. The recovered backup held the same private keys as the current wallet, unlocking 5 BTC worth roughly $395,000.

For eight weeks prior, the owner had been running brute-force attempts on a current Blockchain.com wallet via the btcrecover service, testing approximately 3.5 trillion password combinations on rented GPU compute at a total cost of around $15 — all unnecessary, as it turned out.

The episode points to a genuine and growing use case: AI assistants as file-search tools for nontechnical bitcoin holders sitting on forgotten early-era wallets. Millions of BTC…