Koinly Faces Potential Email Address Leak After Third-Party Breach

By Patricia Miller

Dec 23, 2025

1 min read

Koinly faces a potential email breach due to a third-party incident but assures users that sensitive data remains secure.

Koinly recently announced a potential incident involving user email addresses due to a breach at a third-party analytics provider, Mixpanel. This security concern has raised questions about user data safety, especially among those utilizing Koinly for cryptocurrency tax calculations.

What happened regarding the Koinly email addresses? The situation arose when Koinly identified that Mixpanel may have inadvertently exposed user email addresses. However, Koinly has assured its users that their sensitive information, including cryptocurrency wallets, transaction details, tax reports, and portfolio data, were not impacted during this breach. This sensitive data is stored separately and remains secure.

Koinly is currently investigating the incident thoroughly and collaborating with Mixpanel to assess the full extent of the exposure. While the company has yet to disclose how many users might be affected or when exactly the breach took place, Koinly is taking this matter seriously to protect its user base. In light of these developments, Koinly is proactively working to ensure that its systems maintain the highest level of security for its customers. It is essential for users to stay informed and take necessary precautions to protect their personal data.

Important Notice And Disclaimer

This article does not provide any financial advice and is not a recommendation to deal in any securities or product. Investments may fall in value and an investor may lose some or all of their investment. Past performance is not an indicator of future performance.