Montana officials said Tuesday they are notifying 1.3 million people that their personal information could have been accessed by hackers who broke into a state health department computer server. The letters are going to people whose information and records were on the server. There's no evidence so far that any information was stolen, officials said Tuesday. "There is no information, no indication, that the hackers really accessed any of this information or used it inappropriately," said Richard Opper, director of the state Department of Public Health and Human Services. "We are erring on the side of displaying an overabundance of caution."