Mont. Code Ann. § 50-19-406
Unauthorized disclosure -- misdemeanor
50-19-406 . Unauthorized disclosure -- misdemeanor. A person who knowingly uses information obtained pursuant to 50-19-402 (2) for a purpose not authorized by 50-19-402 (3) or who discloses that information in violation of 50-19-402 (2) is guilty of a misdemeanor and upon conviction is punishable as provided in 46-18-212 .