The undersigned hereby appoints Mark N. Greene, Mark R. Scadina and Nancy E. Fraser, or any of them, as proxies, each with the power to appoint his or her substitute, and hereby authorizes them to represent and to vote, as designated on this voting site, all the shares of Common Stock of Fair Isaac Corporation that the undersigned is entitled to vote at the Annual Meeting of Stockholders to be held on February 7, 2012, or any postponement or adjournment thereof.

THIS PROXY WHEN EXECUTED WILL BE VOTED BY THE UNDERSIGNED STOCKHOLDER. IF NO SUCH DIRECTIONS ARE MADE ON THE EXECUTED PROXY, THIS PROXY WILL BE VOTED “FOR” ALL NOMINEES LISTED IN PROPOSAL 1, AND “FOR” PROPOSALS 2, 3 AND 4.