Data of 5.7M Gemini users available for sale on hacking forums

Gemini crypto exchange warns users of an ongoing phishing campaign after a third-party vendor suffered a security breach.

Gemini crypto exchange is warning of phishing campaigns targeting its users after a threat actor obtained their data by breaching a third-party vendor. The company pointed out that its systems were not impacted.

“Some Gemini customers have recently been the target of phishing campaigns that we believe are the result of an incident at a third-party vendor. This incident led to the collection of Gemini customer email addresses and partial phone numbers.” reads the advisory published by the crypto exchange. “No Gemini account information or systems were impacted as a result of this third-party incident, and all funds and customer accounts remain secure.”

The news was first reported by BleepingComputer which observed multiple offers on several hacking forums for a database allegedly containing the personal information (email addresses and partial phone numbers) of 5.7 million Gemini users.

The database seems to be available for sale since September when a seller was offering it for roughly 520,000 worth of bitcoin.

The advisory published by the company also provides security best practices to mitigate exposure to phishing attacks.

Users are recommended to activating two-factor authentication (2FA) protection use hardware security keys to access their accounts.

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Pierluigi Paganini

(SecurityAffairs – hacking, phishing)

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Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.