Koinly reveals potential email address leak due to third-party breach

Key Takeaways

• Koinly said a third party breach may have exposed user email addresses.
• The company stated no wallet, tax, or transaction data was compromised.

Crypto tax software provider Koinly disclosed a potential email address leak following a security incident at a third-party service provider.

The issue stemmed from Mixpanel, an analytics service used by Koinly. In an email sent to users, the company said the exposure appears limited to email addresses.

It confirmed that sensitive data such as wallets, transactions, tax reports, and portfolio information was not shared with Mixpanel and remains secure on separate systems.

Koinly has not specified how many users may have been affected or when the breach occurred. The company said it is investigating the incident and working with Mixpanel to determine the full scope of the exposure.

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