Phishing Scams Targeting Coinbase Users Following Phone Number Leak

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Yes, Coinbase users are experiencing a surge in phishing scams linked to a recent data breach that exposed sensitive information, including phone numbers.

Details of the Breach

In May 2025, Coinbase disclosed a significant data breach affecting less than 1% of its 9.7 million monthly users. Cybercriminals bribed overseas customer support agents to leak sensitive user information, such as names, phone numbers, government IDs, and partial Social Security numbers. This breach has led to an increase in targeted phishing attacks, with scammers impersonating Coinbase to deceive users into revealing personal information or transferring funds.

Rise in Scam Messages

Following the breach, numerous Coinbase users coinbase user phone number list have reported receiving unsolicited SMS messages containing one-time passwords (OTPs) for withdrawals they did not initiate. These messages often include a phone number to call if the transaction was unauthorized. For instance, the Washoe County Sheriff’s Office issued a warning about a scam where users received OTPs and were urged to call a provided number to verify the transaction. Such tactics are designed to create a sense of urgency and trick users into divulging sensitive information.

Impersonation Scams

Scammers are also using phone numbers obtained from the breach to impersonate Coinbase support. Victims have reported receiving calls from individuals claiming to be from Coinbase, instructing them to transfer funds to a new wallet for security purposes. One notable case involved a 72-year-old woman who lost $36,000 after being persuaded to transfer her funds to a scammer-controlled wallet. Coinbase clarified that it does not make unsolicited calls and warned users about spoofed phone numbers used by scammers.

Protective Measures

To safeguard against these threats, Coinbase advises users to:

Enable Two-Factor Authentication (2FA): Utilize an authenticator app instead of SMS-based 2FA to enhance security.
Coinbase Help

Verify Communications: Always contact Coinbase directly through official channels to confirm any suspicious communication.

Report Scams: Forward phishing messages to Coinbase at [email protected] and report them to your mobile carrier by sending the message to 7726 (SPAM).

Conclusion

The recent breach has significantly increased the risk of phishing scams targeting Coinbase users. While the company is taking steps to address the issue, users must remain vigilant and adopt recommended security practices to protect their personal information and assets.