An unsecured open file server containing Student Health Center clientele information may have been compromised, U. Texas-Arlington reported Friday.

The university has begun to notify approximately 27,000 individuals whose information was temporarily unsecured. The data includes names, addresses, prescription names, and in 2,048 cases, Social Security numbers. Most people affected should get letters in the mail by July 28.

The Office of Information Technology learned of the possible breach June 21. The server was taken offline immediately and secured, the university reported. After review, OIT learned that data had been compromised four times: Feb. 19 and April 28, 2009, and Jan. 23 and Feb. 10, 2010.

The compromise only involves the one server in question. No other UTA servers were affected.

University spokeswoman Kristin Sullivan said it’s like someone opening an unsecured door and looking in. But there’s no sign of foul play, she said.

“We have no indication that the data was downloaded or used,” Sullivan said.

The university would know of such activity because servers generate reports of recent activity, which human staff review periodically.