PANews reported on May 28th that, according to The Block, Aztec Labs has acquired Obsidion, the company behind the open-source privacy authentication tool ZKPassport. Obsidion's co-founders, Michael Elliot and Theo Madzou, and their team will join Aztec Labs to continue developing ZKPassport and related applications. Aztec Labs is building the Ethereum privacy layer-2 network, Aztec Network. Last year, it raised approximately $60 million worth of ETH through an AZTEC token sale and previously secured approximately $125 million in venture capital. ZKPassport allows users to read passports or government documents via their mobile phones using NFC, generating local cryptographic signatures to verify age, nationality, and "real identity" without exposing full privacy. It has been used for compliance identity verification at the Devconnect conference and the Aztec community token sale. Aztec stated that it will continue to keep the ZKPassport protocol and iOS application open source.