When Zero-Knowledge Age Checks Broke the Bank Playbook — and Fixed Crypto Custody

https://echo-wiki.win/index.php/Let%27s_cut_to_the_chase:_Risks_of_uploading_your_passport_to_an_offshore_crypto_server

I still remember the skeptical coffee-fueled meeting in 2023 when someone suggested we could prove a customer is over 21 without ever showing their face or handing over an ID scan. I dismissed it as marketing sparkle. I was wrong, and I’ll admit it