Key takeaways
- Koinly said a third-party breach could have exposed users’ email addresses.
- The company said no portfolio, tax or transaction data was compromised.
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Crypto tax software provider Koinly has disclosed a potential email address leak following a security incident at a third-party service provider.
The problem originated with Mixpanel, an analytics service used by Koinly. In an email sent to users, the company said exposure appears limited to email addresses.
He confirmed that sensitive data such as wallets, transactions, tax returns and portfolio information was not shared with Mixpanel and remained secure on separate systems.
Koinly did not say how many users may have been affected or when the breach occurred. The company said it was investigating the incident and working with Mixpanel to determine the full extent of the exposure.
