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Data Breach News2 min read

Email Panther Full DB Leak: 15M Records & 56 GB Exposed

By InsecureWeb Team

This report reflects observations of dark web activity. InsecureWeb makes no representations regarding the accuracy of this data.

Email Panther Full DB Leak: 15M Records & 56 GB Exposed

💥 Data Breach Summary

A massive data leak from Email Panther has been published on darkforums.st by the hacker @Satanic. The leak includes:

  • Subscribers table: 15,222,011 unique entries
  • Full database size: ~56 GB, containing multiple additional tables

🏢 About Email Panther

Email Panther (EmailPanther.com) is a B2B email marketing platform, providing services for subscriber management, campaign tracking, verification processes, and targeted email marketing operations.

🔍 Company Data Breach History

  • No prior public data breaches have been reported for Email Panther.
  • This appears to be the first known security incident affecting its systems.

⚠️ Where and How?

The breach was posted on darkforums.st by @Satanic, exposing a direct database dump. Unauthorized access was likely achieved via:

  • Exploited backend vulnerability, or
  • Compromised third-party integration with database privileges.

🛡️ Risk & Impact

  • Exposure of over 15 million email addresses and subscriber metadata.
  • Data may be used for targeted phishing, mass spam campaigns, or identity-based attacks against businesses and their customers.

🔧 Recommended Actions

For businesses and subscribers:

  • Treat all email and account data as compromised.
  • Reset passwords and enable two-factor authentication where possible.
  • Monitor inboxes for phishing attempts referencing Email Panther or its services.
  • Review connected CRMs or platforms for suspicious activity.

For Email Panther:

  • Immediately perform a full security audit of all database and application systems.
  • Rotate credentials, enforce strong access controls, and investigate the breach vector.
  • Notify affected customers with clear guidance and remediation steps.

What is InsecureWeb?

InsecureWeb is a Dark Web monitoring service that keeps track of recent data breaches and tracks their impact by monitoring the darkest places of the internet.

Our commitment lies in providing top-notch cybersecurity services to our clients. Through continuous monitoring of the dark web and advanced threat detection methodologies, we strive to identify potential breaches promptly, enabling swift response and mitigation efforts. With our state-of-the-art tools and expertise, we prioritize the confidentiality, integrity, and availability of our clients’ data.

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