Cornerstone Staffing Solutions, Inc. data breach

Clerk's notes

Cornerstone Staffing Solutions, Inc., a prominent human resources and workforce management provider, reported a data security incident to the Oregon Attorney General on September 11, 2026. The breach, which occurred on November 6, 2025, is currently under monitoring, indicating an ongoing review of its scope and impact.

While the precise methods used by threat actors remain unspecified in the filing, incidents affecting staffing agencies often involve sophisticated cyberattacks aimed at centralized employee databases or compromises of third-party vendors. Given Cornerstone Staffing Solutions' role in managing vast quantities of sensitive personal and financial data for job applicants and employees, such incidents can have significant repercussions for affected individuals.

The compromised data potentially includes a dangerous combination of sensitive records. Specifically, the exposed information may encompass Full Name, Social Security Number, Date of Birth, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, Mailing Address, and Telephone Number. The exposure of these data types creates substantial risks, including identity theft, financial fraud, and targeted phishing attempts.

Companies like Cornerstone Staffing Solutions have a legal obligation to protect the sensitive personal data they collect and store. A breach of this nature raises questions about the adequacy of their cybersecurity measures. Affected individuals who receive an official data breach notification letter should understand that their private information was potentially compromised due to corporate security failures.

If you received a data breach notification from Cornerstone Staffing Solutions, Inc., you may be entitled to legal recourse. Our firm is currently investigating potential claims related to this incident. We offer a free, no-obligation case review to help you understand your rights and options without any out-of-pocket cost. We only get paid if we achieve a successful recovery on your behalf.

If a notification letter about this breach reached you, see every Oregon data breach on file or browse all cases.