Data Breach Exposes 25 Million Americans in What Texas Calls the Largest US Hack in History

A massive data breach at the US government contractor Conduent has exposed sensitive information belonging to at least 25 million Americans. The incident is so severe that Texas Attorney General Ken Paxton considers it "likely the largest breach in US history."

Though the breach took place more than a year ago, cybersecurity experts only learned of its full impact in early 2026. Conduent runs back‑office systems for state agencies and major health insurers, handling Medicaid, children's health programs, public benefits, and some tolling operations. This means the stolen data contains names, addresses, Social Security numbers, birthdates, medical data, and insurance data. Some of this information belongs to families and patients with chronic conditions who never even dealt with Conduent directly.

Investigators say attackers were present in parts of Conduent's network from late October 2024 until mid‑January 2025 and used the access to steal data. Safepay claims ...