Allegheny Health Network Home Medical Equipment (AHNHME) publicly announced a data breach in April 2025, following a related disclosure earlier the same year covering the broader Allegheny Health Network home-care patient population. The underlying intrusion occurred at IntraSystems LLC, a third-party IT vendor managing servers for AHN's Home Medical Equipment and Home Infusion subsidiaries. Unauthorized access to those systems took place between October 11 and November 19, 2024 and was discovered on November 19, 2024.\n\nThe AHNHME-specific dataset indexed by breach-tracking services covered approximately 194,000 records. Compromised fields in the publicly indexed subset included names, email addresses, and phone numbers. The broader IntraSystems incident affecting AHN home-care patients more generally was disclosed to the Massachusetts Attorney General as compromising names, dates of birth, addresses, Social Security numbers, financial account numbers, and health insurance information for approximately 293,900 patients. AHN began notifying affected individuals on January 17, 2025 with respect to the broader IntraSystems disclosure, with AHNHME-specific notification continuing through the spring of 2025.\n\nFor affected patients, the practical risk depends on which records were involved. Patients in the AHNHME-specific publicly indexed subset face primarily phishing-and-impersonation risk from the name, email, and phone exposure. Patients in the broader IntraSystems disclosure face more severe identity-fraud and financial-fraud risk because of the Social Security number, date of birth, and financial account number exposure. Affected individuals should freeze credit at all three U.S. bureaus, monitor health-insurance and financial statements closely, and treat unsolicited contact referencing AHN, home medical equipment, or related services with caution.

Integrated health systems collect patient identity, contact, insurance, billing, appointment, and clinical records across hospitals, clinics, and administrative operations.

AHN began notifying patients about a related broader incident in January 2025, when its third-party IT vendor IntraSystems LLC was found to have suffered unauthorized access between October 11 and November 19, 2024 affecting roughly 293,900 home medical equipment and home infusion patients. AHNHME then issued an additional notification round in April 2025 covering the AHNHME-specific subset of records. The Pennsylvania-based health system has continued to operate normally and has implemented additional vendor-management controls. Class-action investigations by U.S. plaintiff law firms began organizing in early 2025 following the initial IntraSystems disclosure.