According to reports out of Pittsburgh this Tuesday, about 8,000 Allegheny Health Network (AHN) patients have been affected by a data breach.

An employee received a phishing email awhile back, and an unauthorized person got access to files that included personal health information. 

The information included their name, birth dates, and medical history.

AHN and Highmark Health said they took action once they discovered what had happened, reset passwords and hired an outside company to help.

Patients whose information may have been compromised are being notified by mail this week, said AHN.