Among the millions are locals right here in Abilene and Brownwood. Many are shocked by the hack and say they feel uncomfortable knowing that their personal information could be in the hands of strangers.
Hackers have gained access to their names, Social Security numbers, physical addresses, birthdays and telephone numbers.
Anyone who received treatment from a physician's office tied to a network-owned hospital in the last five years -- or was merely referred there by an outside doctor -- is affected.
The company's hospitals operate in 28 states but have their most significant presence in Alabama, Florida, Mississippi, Oklahoma, Pennsylvania, Tennessee and Texas
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