Greenville, Texas-based Hunt Regional Healthcare has notified additional patients of a cyberattack earlier this year that may have exposed patient information, according to the Herald Banner.
In July, the health system had mailed letters to a subset of patients about the data breach. After an initial investigation, Hunt Regional Healthcare discovered hackers had gained access to information in its computer networks.
However, after further forensic analysis, the health system determined that more patients may have been affected.
"Our cybersecurity firm determined the breach was more widespread that we originally believed," Lisa Hill, director of foundation development and marketing communications of Hunt Regional Healthcare, said.
Hunt Regional Healthcare decided Oct. 7 to send alerts to its entire patient database, according to Ms. Hill.
Patient data that may have been exposed included names, phone numbers, Social Security numbers, dates of birth, race and religious preferences.