yaso

🥋 Muay Thai athlete (amateur) 🌍 Former W3C, Harvard, World Bank, etc. 🔒 Privacy & security, digital identity, open standards. yaso.is

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Longform Stories

All Government Is a Tech Company Now (And This Is Not Going Away)

Brazil's Central Bank, the Banco Central do Brasil (BCB), is responsible for Pix. It is the country's instant payment rail, launched in November 2020, that reduced peer-to-peer transaction costs to ze…

May 5·8 min read·1488 words

When you're a whole on the internet

Most of us exist online as a jigsaw puzzle scattered across a table. A LinkedIn profile. A Bluesky account. An old Twitter handle. A forum username from 2009. The pieces are all there, but assembling …

Apr 19·7 min read·1372 words

Age verification, verifiable credentials, and the privacy tension rising from the debate

I left a job in March 2025 after years of engineering and researching privacy and identity at the forefront of the KYC industry, more specifically with biometrics and liveness identification. KYC is t…

Apr 11·9 min read·1743 words

Build It and They'll Come: How Fraud Co-Evolves with Digital Infrastructure

Part 2 of 2. Part 1 covered the history of digital identity in Brazil and the data infrastructure that made industrial-scale fraud possible. This piece examines why fraud doesn't attack weak systems, …

Mar 25·9 min read·1656 words

Built for Access: How Brazil's Identity System Opened a Door It Wasn't Designed to Close

Part 1 of 2. This piece covers the history of digital identity in Brazil and the data infrastructure that made industrial scale fraud possible. Part 2 covers how fraud co-evolves with digital infrastr…

Mar 25·12 min read·2330 words