FLSV Data Breach Exposes Sensitive PII of 28 Massachusetts Residents Frankel Loughran Starr & Vallone (FLSV), a U.S.-based accounting and tax advisory firm, reported a data breach on March 3, 2026, disclosing the exposure of sensitive personal information belonging to 28 Massachusetts residents. The incident was filed with the Massachusetts Office of Consumer Affairs and Business Regulation in compliance with state breach notification laws. The compromised data includes driver’s license numbers and Social Security numbers, though the exact cause whether a cyberattack, insider threat, or other vector remains undisclosed. The timeline of the breach and the method of unauthorized access have not been publicly detailed. FLSV has adhered to regulatory requirements by notifying affected individuals and authorities, though further specifics on its response have not been released. The breach underscores ongoing risks to personally identifiable information (PII) within financial and professional services sectors.