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Coinkite Flags Security Risk For Coldcard Bitcoin Wallets Coinkite, the company behind Coldcard Bitcoin hardware wallets, has issued a security advisory for Mk3 devices. The issue affects seeds generated on Coldcard Mk3 devices running firmware versions 4.0.1 through 5.0.3
Coinkite warned that Coldcard Mk3 wallets with firmware versions 4.0.1 to 5.0.3 may generate insecure seeds, creating a security risk for users of those devices.
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What happened
Coinkite warned that Coldcard Mk3 wallets with firmware versions 4.0.1 to 5.0.3 may generate insecure seeds, creating a security risk for users of those devices.
Confirmed
Global impact / market context
A compromised seed can let attackers steal the BTC stored on the wallet, directly affecting users’ holdings and possibly reducing trust in hardware‑wallet solutions.
Confirmed
Bitcoin hardware wallets are widely used to store BTC securely, and any vulnerability can influence user confidence and demand for alternative storage solutions.
Confirmed
What to watch
- Whether Coinkite releases a firmware patch to fix the seed‑generation flaw and how quickly users apply it. Proposed
- Potential increase in demand for other hardware wallets if confidence in Coldcard declines. Analyst inference
- Regulatory scrutiny on hardware wallet security standards as the issue gains attention. Analyst inference
Affected assets
- BTC — Bitcoin