July Crypto Theft Hits $247.4M, Driven by Coldcard Exploit

TL;DR

• July crypto thefts reached $247.4 million, more than triple June’s total, making it the second-worst month of 2026 behind April’s $644 million.
• The Coldcard exploit drove the surge, stealing at least $100 million in Bitcoin from 7,300 wallets, with potential losses reaching about $130 million.
• Other July attacks hit AFX, Bonzo Lend, the Verus Ethereum Bridge and SecondFi, showing that wallets, DeFi protocols, exchanges and cross-chain infrastructure remained exposed.

July became the second-worst month of 2026 for cryptocurrency thefts after hackers stole $247.4 million, more than tripling June’s $75 million total and far surpassing May’s $60 million. The surge was driven primarily by the Coldcard exploit, which accounted for at least $100 million in stolen Bitcoin across 7,300 wallets and three confirmed attack waves. What makes the episode unsettling is that a security product designed for cold storage became the center of the month’s largest crypto breach, challenging assumptions that keeping assets offline is enough to neutralize sophisticated technological threats.

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