Data breaches

Search incidents by company, country, industry, year and attack method. Review affected data, impact, verification status, company responses and sources.

382 results
Confirmed

Kaplan North America: files with SSNs taken from servers

An unauthorised actor accessed Kaplan’s servers between October 30 and November 18, 2025 and took certain files; on February 21, 2026 Kaplan determined the files contained names, SSNs and/or driver’s licence numbers.

Investigating

Woundtech reports possible data copying

Possible data leak: Information may have been copied by an unauthorised individual in a December 2025 incident.

Confirmed

Jacobson Adler: files copied in network intrusion

An unauthorised actor accessed the network October 12–26, 2025 and copied files that may include names, SSNs and financial-account information.

Investigating

OSI Systems: files on network may have been accessed

After becoming aware of suspicious activity in its network, OSI found that certain files may have been accessed without authorisation; it completed its review of the affected files on February 10, 2026.

Investigating

Melvin Mora & Associates: tax client data may have been exposed

Possible data leak: In late February 2026, the firm’s 2025 client data environment was affected by a breach; the investigation identified 13 clients whose information was used to file fraudulent tax returns, which were blocked by the IRS and California Franchise Tax Board.