Mysten Labs co-founder and chief cryptographer Kostas Chalkias says he has quietly leased a factory to mass-produce quantum-resistant hardware wallet cards for Sui, aiming to keep users safe from a threat that just cost bitcoin holders roughly $130 million.
Key Takeaways
Kostas Chalkias says he leased a factory to build quantum-safe Sui wallet cards at scale.The target: under $10 per quantum card key and 1-2 seconds per NFC quantum signature.The move follows a Coldcard firmware flaw that drained about $130 million in BTC since July 30.“Last year, with help from some friends, I leased a dedicated factory in a secret location to build quantum-safe wallets at scale”
He has set a target of under $10 per quantum card key and 1-2 seconds per NFC quantum signature. Chalkias said he took on the project using personal time outside his day job, and that he may go as far as sponsoring the cards for users who can’t afford them.
Moreover, he directly referenced the recent Coldcard hardware wallet disaster as an added impetus to his ongoing mission, writing:
“What happened to Coldcard will NEVER happen to my people.”
And, while the Coldcard flaw wasn’t a quantum attack, it illustrated the same underlying risk Chalkias is trying to get ahead of, i.e. hardware wallets that quietly fail at the cryptographic level, become potential attack vectors until the funds start moving.
Sui’s Broader Quantum RoadmapExisting Sui accounts would be able to rotate into a quantum-safe key derived from their existing recovery phrase rather than requiring a full migration to a new wallet. Chalkias has put forth Sui’s ability to swap in new authentication methods, including post-quantum cryptography, as a structural advantage over chains that would need a more disruptive hard fork to make the same change.
