Conduent Breach Ranks Among 2024’s Largest, Exposing 15.5 Million Individuals Conduent Business Services, a U.S.-based IT and business services provider, confirmed a 2024 data security incident that compromised the sensitive personal information of approximately 15.5 million people, making it one of the year’s most significant breaches. The company disclosed the incident without specifying the exact timeline or attack vector, though the scale underscores the growing threat of large-scale data exposures in enterprise environments. The breach adds to a rising trend of high-profile cyber incidents in 2024, including ransomware attacks, supply chain compromises, and state-backed espionage campaigns. While Conduent has not released further details on the nature of the exposed data, such incidents typically involve personally identifiable information (PII), financial records, or healthcare-related data, heightening risks of identity theft and fraud for affected individuals. The disclosure follows other major breaches this year, including Iron Mountain’s ransomware attack by the Everest group and allegations of a 90GB data theft from HP’s Poly Network. The incident also coincides with increased scrutiny of cybersecurity practices in critical sectors, from healthcare (e.g., Alpine ENT’s breach affecting 65,000) to government-linked software vulnerabilities, such as the exploitation of ArcGIS by state-backed hackers. As organizations grapple with evolving threats, the Conduent breach serves as a reminder of the persistent challenges in safeguarding large-scale data repositories against sophisticated adversaries.

The California Office of the Attorney General reported that Calpine Corporation experienced a data breach on February 9, 2016, when an employee's laptop containing confidential employee information was stolen. Approximately 500 individuals were potentially affected, with the exposed information including names, Social Security numbers, bank account details, and payroll data.