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Proton Unveils Public Data Breach Observatory to Track Dark‑Web Leaks in Near Real Time

Built with Constella, the tool watches underground markets to surface unreported breaches faster than company disclosures.

Overview

  • The live hub launched today with a 2025 tally of 794 identifiable incidents exposing over 300 million records, rising to 1,571 incidents and hundreds of billions of records when aggregated datasets are counted.
  • Proton says the primary figures exclude combo lists and infostealer dumps, focusing on single‑source breaches tied to specific organizations.
  • Small and medium‑sized companies account for the majority of observed cases, with SMBs making up roughly 70.5% of breaches and retail, technology, and media among the most targeted sectors.
  • The most commonly exposed data includes email addresses (100% of cases), names (90%), contact information (72%), passwords (49%), and sensitive records such as government or health data (34%).
  • Proton plans near‑real‑time updates using automated crawling, curated feeds, and human analysts via partner Constella, a faster approach that observers note could flag some false positives compared with more conservative services like Have I Been Pwned; early reports also noted the site initially appeared only in German.