Mont. Code Ann. § 50-19-405
Unauthorized disclosure -- civil penalty
50-19-405 . Unauthorized disclosure -- civil penalty. A person aggrieved by the use of information obtained pursuant to 50-19-402 (2) for a purpose not authorized by 50-19-402 (3) or by a disclosure of that information in violation of 50-19-402 (2) may bring a civil action in the district court of the county of the person's residence for damages, costs, and fees as provided in 50-16-553 (6) through (8) or 50-16-817 .