Trezor Hardware Wallet Warns Users Still Affected if Seed Generated on Compromised Coldcard is Transferred to Trezor
Trezor hardware wallet warns that if the seed is generated on the affected Coldcard and then transferred to Trezor, users are still at risk.
The seed was created with weak randomness on Coldcard, and restoring it to other devices cannot fix the flaw; Trezor recommends generating a new seed on the device and carefully transferring funds.
This incident drives users to move funds from old seed addresses to newly generated addresses, with funds flowing out of vulnerable single-signature wallets, benefiting attackers who possess weak entropy, while those who have migrated but still use the original seed bear the burden.
Source: Public Information
ABAB AI Insight
Trezor has previously emphasized its hardware's true random number generation and open-source firmware audits, and publicly compared its TRNG design during the 2022 Trust Wallet weak entropy incident, consistently making seed generation quality a core differentiating selling point.
This statement addresses the cross-device migration scenario after the Coldcard firmware RNG fallback, requiring users to completely abandon the original seed, regenerate on Trezor, and complete the fund transfer, motivated by the need to cut off the continuous exposure window of weak entropy seeds and avoid brand association losses.
A similar "migration does not fix original flaws" logic has appeared in early security component vulnerabilities of Ledger and several software wallet PRNG failure cases. The current hardware wallet industry is in a phase of revalidating security models, with single-device seed reliance being rapidly replaced by multi-signature and user-added entropy.
This essentially represents risk transmission after a failure of technical substitution: weak entropy is locked at the moment of generation, and subsequent device changes cannot rewrite the already solidified private key space, as the mechanism has the entropy source defect occurring before key derivation is completed, leading to full lifecycle exposure.
ABAB News · Law of Cognition
Once a seed is generated, the defect is permanent
Changing devices does not equal fixing entropy
Security only recognizes the randomness of the moment of generation