Grant Street Group Data Breach Letter: What Happened and Your Legal Options

Dapeer Law is investigating a potential class action over the May 2026 Grant Street Group data breach, in which files containing W-9 form information, including names, Social Security numbers, addresses and signatures, were uploaded to an external Google Drive folder during a social engineering attack on its former service provider. Notice recipients can enroll in free Epiq credit monitoring and review their legal options.