Kostas Chalkias

Kostas Chalkias is the Co-Founder and Chief Cryptographer at Mysten Labs, spearheading cryptographic innovation and building scalable, secure, and privacy-enhancing technologies for the Sui blockchain. Prior to Mysten Labs, he spent nearly three years at Meta as Lead Cryptographer, where he contributed to the development of the Diem (Libra) blockchain, Novi wallet, and WhatsApp payments.


Kostas Chalkias

Latest from Kostas Chalkias

Opinion

It’s Time for the Crypto Industry to Take the Threat of AI and Quantum Computing Seriously

If a quantum computer ever broke a blockchain, the entire crypto industry might as well close down shop, argues Kostas Chalkias, chief cryptographer at Mysten Labs.

Oct 19, 2025

Retro computer (Unsplash/Modified by CoinDesk)
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