Lockton Data Breach Affects Over One Million Americans: SSNs Exposed

On February 5, 2025, Southeast Series of Lockton Companies, LLC ("Lockton") discovered a data breach involving unauthorized access to sensitive personal information of 1,055,380 people in the United States.

The breach occurred on November 20, 2024, when Lockton identified suspicious activity on one of its internal computers.

An investigation revealed that an unauthorized party accessed a single individual account and computer within Lockton's environment, obtaining certain files containing personal consumer data.

Lockton then conducted an extensive review of the compromised files to identify affected individuals. The review concluded on February 5, 2025, confirming that personal information of numerous individuals was exposed.

Information Exposed:

• Full names
• Addresses
• Social Security numbers
• Medical information
• Health insurance information
• Dates of birth

Individuals affected by region:

• United States: 1,055,380 residents
• Texas: 104,251 individuals (up from the original 9,586 figure - updated April 10, 2025)
• South Carolina: 11,007 individuals
• New Hampshire: 3,268 individuals
• Massachusetts: 2 individuals
• Maine: 1 individual

Lockton began notifying affected consumers on March 7, 2025, via U.S. mail, publication in print media, and postings on the company's website.

Lockton's Response

Lockton is offering complimentary 24-month memberships to Experian IdentityWorks, an identity protection service. This service provides identity theft detection, credit monitoring, identity restoration support, and up to $1 million in identity theft insurance. Affected consumers must enroll by June 30, 2025, to take advantage of this offer.

For further assistance or questions about this data breach, consumers can contact Lockton's dedicated support line provided in their notification letters.

Additional Information and Resources

For more details about this breach, consumers can review official disclosures filed with various state attorney general offices and the U.S. Department of Health and Human Services:

• Maine Attorney General's Office Data Breach Notice
• Texas Attorney General's Office Data Breach Report (revised on July 1, 2025)
• Massachusetts Attorney General's Office Data Breach Report
• California Attorney General's Office Data Breach Report
• Vermont Attorney General's Office Data Breach Notice
• South Carolina Attorney General's Office Data Breach Notice
• Oregon Attorney General's Office Data Breach Portal
• U.S. Department of Health and Human Services Breach Report