Scammers are calling Coinbase customers claiming a suspicious activity, a withdrawal, was found on their accounts. But, Coinbase does not place outbound calls regarding suspicious transactions to customers. The scam call then asks potential victims to press 1 if they did not authorize the transaction, which will connect them to a fraud specialist so they can dispute it. But that so-called special is a scammer, who will attempt to trick their potential victims into disclosing their Coinbase account, personal and financial information, which they will fraudulently.