Data report
The State of Data Breaches — May 2026
In May 2026, RecentBreaches tracked 819 data breaches exposing 301.9M records.
819
Breaches tracked
▼ 9 (-1%) vs Apr
301.9M
Records exposed
▲ 255.1M (+545%) vs Apr
795
Critical / high severity
788
Ransomware-linked
96% of breaches
Breaches by sector
| Sector | Breaches |
|---|---|
| Other | 819 |
Biggest breaches this month
| Organization | Records exposed |
|---|---|
| Instructure | 280.0M |
| Antel | 5.8M |
| Charter | 4.9M |
| B1ack's Stash Marketplace Releases 4.6M Stolen Credit Cards | 4.6M |
| DentaQuest | 2.6M |
Are you in any of these breaches?
Check your email against 15.4B breach records, free — run a scan on GalaxyWarden.
Check your email against 15.4B breach records, free — run a scan on GalaxyWarden.
Methodology: figures are aggregated from breaches tracked in the RecentBreaches database, grouped by incident month. Free to cite with attribution to RecentBreaches.
Explore the full dataset: all breaches · companies · data studies.