The global technology executive, recruited from London, previously served as CEO of two NASDAQ-listed technology companies and has held senior positions at Aspect communications, including vice president North America and EMEA. PassMark's chairman, Bill Harris, who has served as acting CEO, will remain chairman and actively involved.

"We scoured the world for the best high-growth CEO, and found her," said Harris. "Lin is a highly accomplished leader with the critical experience necessary to guide PassMark though its next phase of rapid growth. With the FFIEC's endorsement of two-factor authentication for all U.S. banks, we are experiencing exponential demand for what the market has chosen as an innovative approach."

Johnstone's sector experience includes computer and telephone software technology, with deep experience in operations, fiduciary management and sales/marketing. Johnstone's strengths lie in bringing together talented teams of people to quickly achieve aggressive business goals, through solid business strategy and execution. Johnstone received her MBA from Oxford Brookes University.

"For a relatively young company, the management and engineering teams possess extraordinary experience and depth. Their work has catapulted PassMark into a leadership position and I look forward to working with this talented team as we build a broader, deeper company capable of meeting the online security needs of our rapidly expanding customer base and indeed, of the world banking market," said Johnstone.

Just last month PassMark announced the expansion of its world-class engineering management team with the addition of Kim MacPherson as vice president of engineering. MacPherson was vice president of engineering at Securify and Intuit.

MacPherson joins Louie Gasparini, CTO, who was senior vice president Internet Transaction Systems at Wells Fargo; Charley Chell, director of engineering, who managed development teams at CyberSource, and William Wright, PhD, chief scientist, the lead architect of both the world's leading back-end credit card fraud detection system (HNC's Falcon system) and a leading front-end credit card fraud detection system (CyberSource's AFS system).