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Over 7 Million OpenSea Email Addresses Exposed

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by Giorgi Kostiuk

5 months ago


In 2022, OpenSea was rocked by a massive data breach affecting millions of users. Now, with over 7 million email addresses publicly accessible, users are at significant risk of phishing attacks.

Timeline of the OpenSea Data Leak

In June 2022, during OpenSea's peak success, an employee of their email vendor, Customer.io, exploited their access to extract and share OpenSea users' email addresses with a third party. This breach affected both regular users and prominent figures in the crypto industry.

Dangers of Phishing Attacks

As confirmed by cybersecurity expert 23pds, these email addresses are now widely accessible, making their owners prime targets for phishing attacks. These attacks pose financial and reputational threats, often mimicking communications from trusted entities like OpenSea.

Security Recommendations

Experts strongly advise users whose email addresses were compromised to enhance their security measures by creating strong, unique passwords and using password managers. Two-factor authentication via apps is also crucial.

This incident serves as a reminder of the importance of data protection in the crypto realm. The OpenSea case highlights the need for heightened security awareness at all levels of a platform's operation, including third-party services.

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