Overview
- Proton’s new, no‑cost Data Breach Observatory went live with verified 2025 findings drawn from criminal marketplaces in partnership with Constella Intelligence.
- The dataset identifies 794 discrete breaches exposing over 300 million records this year, rising to 1,571 incidents and hundreds of billions of records when aggregated dumps are counted.
- Small and medium‑sized businesses account for roughly 70% of observed incidents, with larger firms making up the remainder.
- Retail leads the targeted sectors at about a quarter of cases, followed by technology and media or entertainment.
- Exposed fields are dominated by email addresses, names and contact details, with nearly half of incidents involving passwords and over a third containing sensitive records; the public tool is searchable by date, size, data type, country, company, industry and company size.