COLDCARD Exploit: Binance Founder CZ Warns, “Nothing is 100%”

NewsSun, 02 Aug 2026 09:00:00 UTC1 hour ago
COLDCARD Exploit: Binance Founder CZ Warns, “Nothing is 100%”

Key Insights:

  • Binance founder Changpeng Zhao (CZ) says no wallet is completely safe after the reported $40 million COLDCARD exploit.
  • Samson Mow urges affected users to document everything and avoid recovery scams.
  • Jack Mallers calls on users to act quickly and check affected COLDCARD devices.

The COLDCARD exploit has sparked fresh concern across the Bitcoin community after about 594 BTC, worth nearly $40 million, was stolen from hundreds of hardware wallets. Binance founder CZ, JAN3 chief Samson Mow, and Strike CEO Jack Mallers have all responded. They warned users to review their wallet security and avoid relying on a single method to protect their funds.

CZ Says No Wallet is Completely Safe

News of the COLDCARD exploit spread quickly after reports claimed that about 594 BTC was drained from around 500 hardware wallets in just 25 minutes. The reported loss was valued at roughly $40 million. According to the information shared, the issue was linked to firmware version 4.0.0, which was released in March 2021.

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