Coinbase said on October 28, 2026, that a security incident at analytics vendor Amplitude affected contact data belonging to a “small subset” of Coinbase customers. Coinbase said it had found no evidence of unauthorized access to its own systems and that customer funds were not affected.
The company said it was notifying affected customers and regulators. It did not say how many customers were affected, what contact data was exposed or when the incident took place.
