CryptoMedium•1 August 2026•
1 min read

CZ Warns Bitcoin Holders as Coldcard Exploit Losses Surge to $70 Million

Key Facts

1Binance founder CZ urged holders to spread funds across multiple wallets, warning that no security measure is 100% foolproof.
2Galaxy Research estimated the total losses from the Coldcard wallet exploit at approximately $70 million, nearly double the initial estimates.

Amid escalating cybersecurity threats targeting digital assets, Binance founder CZ has issued a critical warning to cryptocurrency holders regarding wallet security. According to reports, CZ urged users to spread their funds across multiple wallets, emphasizing that no security measure is 100% foolproof. This advisory follows the emergence of significant vulnerabilities affecting hardware wallet users.

Galaxy Research estimates that total losses from the Coldcard wallet exploit have surged to approximately $70 million, nearly doubling initial projections. This sharp upward revision in lost funds highlights the risks associated with centralized points of failure, even within cold storage solutions typically deemed the most secure in the industry, per market analysis.

As of August 1, 2026, market sentiment remains weighed down by these substantial security breaches.