Katie Arrington, former South Carolina state lawmaker and a previous Wash100 awardee, has been named chief information security officer at the Department of Defense.

She announced her appointment in a LinkedIn post published Tuesday.

Arrington served as CISO within DOD's Office of the Under Secretary of Defense for Acquisition and Sustainment from 2019 to 2022. During her time at the DOD, she helped advance the department's Cybersecurity Maturity Model Certification program.

Prior to rejoining DOD, she was senior vice president of external affairs at software development company Exiger, where she also served as VP of government affairs, according to her LinkedIn profile.

The former member of the South Carolina House of Representatives held leadership positions at several tech companies, including VP of sales operations for military and government at Dispersive Technologies, director of technology services at Centuria and vice president at Catalyst Development.