Glassnode, a prominent crypto market data and analytics provider, has notified customers of an ongoing security incident that may have resulted in the exposure of certain user information, including email addresses.

The company said it is actively investigating the incident and has yet to determine the full extent of any affected data.

Glassnode urged users to remain alert for phishing attempts and fraudulent communications impersonating the company. It advised customers to trust only emails sent from its official domain, noting that it does not operate a customer support phone line, and said it will provide further updates if additional action is required.

Concerns about a potential Glassnode data breach first surfaced in a Reddit post, where a user warned that Glassnode’s email list may have been leaked or hacked after receiving a phishing email at an address created exclusively for the blockchain analytics platform. The user said the targeted nature of the message indicated that customer email data may have been exposed.