São Paulo Court Rules Against Coinbase in Landmark Case Over $100K Se…

A São Paulo court ruled against Coinbase, ordering it to reimburse a user ~$100K for unauthorised funds transfer from a self-custody wallet, citing Brazil's Consumer Protection Code and holding the company liable for software security regardless of technical architecture. If you build a self-custody wallet or crypto app registered in Brazil, you're now liable for hack losses even when users hold their own keys - the court has moved liability from user to builder. This ruling will ripple across Latin America and sets a precedent that 'not our keys' is no longer a legal defence.