Wyoming Gov. Mark Gordon thanks speaks at an event at the State Capitol in Cheyenne, Wyoming on Dec. 14, 2020. (U.S. Air National Guard / Jacqueline Marshall) Wyoming interim CIO Sheehan resigns, CISO named new CIO Wyoming interim Chief Information Officer Timothy Sheehan announced his departure from state government. State Chief Information Security Officer Aaron Roberts is his replacement. Apr 5, 2024 By Keely Quinlan