2026-06-10 –, Prague East (↑ upstairs)
Brazil's Pix system has achieved remarkable financial inclusion, but at a hidden cost: by enabling personal identifiers, such as phone numbers and tax IDs, to be used as payment keys, the system has essentially created the perfect conditions for an epidemic of fraud. The lesson is clear: privacy is essential infrastructure, not an optional extra.
Paulo Sacramento is a Germany-based UX designer and researcher working at the intersection of privacy, usability, and Bitcoin. He has contributed to the Bitcoin design community with support from the Human Rights Foundation, and his work focuses on turning complex systems into experiences people can actually trust.