2026 Glassnode — forum sale claim (unverified); 850K+ user records alleged
Data compromised
Actor-claimed 850,000+ user records including email addresses, password hashes, names, account/subscription details, API keys, HubSpot-related data, referral/affiliate info, marketing preferences, and company identifiers—unverified
Technical writeup
Unverified forum sale claim — observed July 10, 2026. Threat-intelligence monitoring (CyberX on X) documented a criminal-forum listing advertising a database allegedly tied to Glassnode, the cryptocurrency on-chain analytics vendor. The seller claims 850,000+ user records with emails, password hashes, names, subscription metadata, API keys, HubSpot-related exports, referral data, and marketing preferences, offering copies for sale. Glassnode had not publicly confirmed a breach at catalog time and no independent newsroom validation was available. BreachHistory uses the actor-cited 850,000+ count labeled unverified pending company or regulator attestation.
Root cause
Unverified cybercrime-forum sale listing claiming Glassnode customer database and HubSpot-related data—Glassnode had not confirmed at catalog time