The University of Iowa launched a new tool to prevent identity theft for its employees.

The free service, Duo, is a two-step phone verification tool to protect employees from on- and off-campus locations. The service is also used by several companies, including Facebook, Google, and Tumblr.

The new tool follows a series of phishing scams that hit the UI last fall. The new verification service will require employees to enter a phone number, and a verification code will be sent to complete the process. The service also requires employees’ to re-verify a phone number if they use a different computer, clear their browser’s cache, or after 30 days have passed.

— by Stacey Murray