FREDERICK, Md. (AP) — Someone hacked the computers of a state-licensed provider of services to the developmentally disabled and stole Social Security numbers and medical information for about 9,700 clients, the organization and the state agency that oversees it said Monday.

Frederick-based Service Coordination Inc. said it learned of the security breach in late October but didn’t begin notifying affected individuals until Friday. Part of the delay came at the request of the U.S. Justice Department to allow for a federal investigation, the nonprofit organization said.