NEWPORT NEWS, Va. (CBS19 NEWS) -- The two big hospitals in the area have been impacted by a data hack at a third-party vendor.

According to posts on the websites of the University of Virginia Health System and Sentara Health, the incident involved R&B Corporation of Virginia.

This company does business under the name Credit Control Corporation or CCC, which may have an impact on health care and telecommunication service providers.

CCC has reportedly mailed notice letters to any people whose information may have been impacted.

CCC says it became aware of some unusual activity involving certain systems within its network on March 7.

The company says it quickly isolated those systems and opened an investigation into what was happening and how many people it may affect.

Around March 14, it was determined that certain files had been copied as part of the cyber incident between March 2 and 7.

On May 4, CCC began to notify business partners concerning the breach.

The review is ongoing but it has determined that the information taken includes names, addresses, Social Security numbers, and other information relating to individual accounts.

CCC has set up an assistance phone line that can be reached on weekdays between 9 a.m. and 6:30 p.m. That number is (866) 347-3197.

People who have received a notification about the potential breach or who think their information has been affected can call with questions.

For more information, click here.