Major data breaches of 2025

In June 2025, a massive credential-stuffing database was discovered containing over 16 billion unique login pairs aggregated from Goo

๐Ÿ“… Last Updated: December 20, 2025
Records Leaked
22.5 Billion+
Largest Breach
16B (Mega-Leak)
Top Sector Hit
Healthcare

๐Ÿ† Breach of the Year: The 16-Billion Record Leak

In June 2025, a massive credential-stuffing database was discovered containing over 16 billion unique login pairs aggregated from Google, Apple, and Facebook platforms. This represents the largest single collection of stolen PII in history.


๐Ÿ“ 2025 Data Breach Master List

Company/Entity Records Exposed Date Type of Data
PowerSchool 62 Million Jan 2025 SSN, Grades
SK Telecom 26.9 Million April 2025 SIM Data, PII
Marks & Spencer Full Ops (Ransom) May 2025 Inventory, HR
Qantas Airlines 6 million records June 2025 Loyalty profiles
TransUnion 4.4 Million July 2025 Fin-Records, SSN
Discord (via Zendesk) Unknown (Age ID) Sept 2025 Selfies, ID Docs

๐Ÿ” 2025 Breach Trends

  • Shadow AI Leaks: 20% of corporate breaches this year were caused by employees uploading sensitive data to public AI tools.
  • Third-Party Supply Chain: Over 30% of breaches originated from a vendor or contractor (e.g., the Discord/Zendesk incident).
  • Vishing Spike: AI-powered voice cloning (vishing) has become the #1 way attackers bypass Multi-Factor Authentication.
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