According to the statement, law enforcement authorities believe that -- based on the nature of the crime and the items taken from the six businesses -- this was an act by thieves looking for cash and other property to pawn.

Concentra said it believes it's unlikely that data from the back-up tapes could be successfully accessed due to a complex combination of commercial equipment plus special versions of back-up and database software packages needed to read the data, which is in unlabeled formats and difficult to understand. These tapes cannot be used on a standard PC, Concentra said.