A complaint filed with the Maine Attorney General’s office also alleges the attack was only discovered six much after it occurred.
A recent filing with Maine’s attorney general sheds new light on Coinbase’s data breach, claiming that nearly 70,000 users were impacted and that the incident went unnoticed for nearly six months.
According to the filing submitted by legal firm Latham and Watkins LLP, 69,461Coinbase users were compromised by the breach, 217 of whom are residents of the US state of Maine.
The document also indicates the breach occurred on Dec. 26, 2024, but was only discovered on May 11, 2025 — nearly six months following the cybersecurity incident.
