Can AI Hack Bitcoin? CZ Says the Real Danger Lies in Phishing and Data Leak

On October 23, 2026, Binance founder Changpeng Zhao said artificial intelligence would not need to defeat Bitcoin’s cryptography to cause harm, because leaked data already enables phishing and social engineering. Bitcoin Core developer Antoine Poinsot also announced a revised disclosure policy because large language models make some flaws easy to rediscover; easily discoverable vulnerabilities will be fixed promptly across maintained versions with advisories, low-severity issues become public two weeks after a fixed major release, and medium- and high-severity flaws stay private until the last affected version reaches end of life. Ethereum researcher Justin Drake had warned the industry to prepare for a worst case in which AI breaks wallet cryptography, though no practical attack has emerged.