Aesto Health Data Breach Affects Over 9.5 Million Patients
September 1, 2026 Healthcare technology company Aesto Health has reported a major data breach potentially affecting 9,540,683 individuals . According to Aesto, an unauthorized actor accessed a portion of its AWS infrastructure between December 2 and December 18, 2025 . The company detected the incident on December 18 and launched an investigation with the help of external cybersecurity experts. The investigation found that personal and protected health information belonging to patients of Aesto's healthcare-provider clients may have been accessed or acquired. What Information Was Exposed? The potentially affected information varied by individual and may have included: Names and dates of birth Medical and health insurance information Social Security numbers Government identification numbers Driver's license information Financial account information Aesto has stated that it currently has no evidence of identity theft or financial fraud connected to the incident. The Cybersecuri...