A major data breach affected over 42,000 customers of Duo Broadband, exposing personal information including Social Security numbers. The attack was linked to the Qilin ransomware gang, which also targeted other US utility companies.
Affected: Communications Data Group, Duo Broadband, US utility companies
Affected: Communications Data Group, Duo Broadband, US utility companies
Keypoints
- The data breach involved the exposure of personal data of over 42,000 Duo Broadband customers.
- Communications Data Group, the billing vendor for Duo Broadband, was targeted in a ransomware attack in February 2025.
- Qilin, a ransomware gang based in Russia, claimed responsibility for the breach but has not been verified by CDG.
- Ransomware attacks on US utilities are increasing, with significant data leaks affecting hundreds of thousands of records.
- The breach highlights the ongoing threat ransomware gangs pose to telecommunication and utility sectors.