Data breaches

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

1169 results
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.