Kraken’s Nick Percoco highlighted the incident as a systemic failure in hardware wallet testing, stressing the lack of independent verification for entropy sources. He warned that users rely on manufacturers to ensure cryptographic integrity without external validation, a practice he described as “asking consumers to trust a manufacturer’s implementation of the single most critical function in the system.”
Coinkite’s postmortem analysis acknowledged that the bulk of randomness in Coldcard devices came from an unanticipated pseudorandom number generator (PRNG) within the codebase. The firm has since halted shipments of affected devices and destroyed remaining units with compromised firmware, advising users not to discard affected hardware.
The incident has drawn attention to international standards such as NIST SP 800-90B and BSI AIS-31, which outline rigorous testing protocols for RNGs. Experts suggest that adherence to such frameworks could have potentially identified the flaw earlier.
Over 4,500 addresses are believed to have been impacted, though exact figures remain under investigation. Coinkite’s legal team is reportedly working with law enforcement to address the breach, but no formal charges or legal outcomes have been announced.
The exposure of the RNG flaw underscores the risks of relying on single points of failure in cryptographic systems. As the cryptocurrency industry continues to grow, the need for transparent, independently verifiable security practices in hardware wallets is likely to become a focal point for regulators and users alike.
Written by Daniel Brooks
Security Desk
