The ruling, which went against Coinbase adjacent though it did not power the user’s wallet, mightiness found a precedent for liabilities affecting companies providing self-custody tools, adjacent if they are lone progressive arsenic bundle providers.
Published: Jul 12, 2026, 3:30 AM
Key Takeaways
- A Brazil tribunal ordered Coinbase to instrumentality $100K to a idiosyncratic aft unauthorized wallet transactions occurred.
- Coinbase mislaid aft failing to beryllium the idiosyncratic sent the funds oregon that basal wallet information existed.
- This determination sets a precedent, meaning wallet devs mightiness adjacent look strict liability for idiosyncratic security.
São Paulo State Court Rules against Coinbase successful $100K Trial
The authorities of São Paulo has ruled against Coinbase successful a lawsuit that mightiness acceptable a precedent successful the self-custody cryptocurrency wallet supplier industry.
The São Paulo State Court ordered Coinbase to instrumentality astir $100K to a idiosyncratic who deposited these funds into the Coinbase wallet, citing the Customer Protection Code provisions, which spot the load of impervious for immoderate assertion connected the concern providing the service.
The lawsuit claimed that the funds disappeared from their wallet without authorization. Coinbase alleged that it was not progressive successful this substance due to the fact that the wallet’s private key was nether the user’s afloat control.
Nonetheless, Coinbase failed to beryllium that the wallet holder did, successful fact, initiate this transaction and was incapable to show the beingness of information measures to forestall this outcome.
Raphael Souza, a specialized cryptocurrency attorney, highlighted the relevance of this determination for self-custody wallet providers, which person a work to physique bundle resilient capable to withstand these attacks.
Souza told Portal bash Bitcoin that this ruling dismantles 2 communal arguments by crypto companies. “The archetypal is that a self-custody portfolio does not make liability. Anyone who develops and puts a merchandise connected the marketplace is liable for its security, careless of however the method architecture works down it.”
This applies to Coinbase, which is simply a registered institution successful Brazil, Souza assessed.
The different statement is that method documents don’t assistance successful these cases by themselves if companies neglect to supply a thorough explanation, aiding courts successful knowing them. Magistrate Ju Hyeon Lee criticized Coinbase connected this matter.
“Coinbase had each accidental to beryllium that the capitalist authorized the transaction, explicate the method records, and pass wherever the funds went. It chose not to bash immoderate of that,” Souza concluded.
As the magnitude presented by the idiosyncratic was not contested, Coinbase was ordered to instrumentality the full magnitude positive the owed ineligible interest.

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