Larry E. Rittenberg, PhD, CPA, CIA, is the Ernst & Young Professor of Accounting & Information Systems at the University of Wisconsin--Madison, where he teaches courses in auditing and computer and operational auditing. He is currently the Chair of the Committee of Sponsoring Organizations of the Treadway Commission (COSO) where he has provided oversight of the development of the COSO Enterprise Risk Management Framework as well as the COSO Guidance for Smaller Businesses. He has served as Vice-Chair of Professional Practices for the Institute of Internal Auditors (IIA) and President of the IIA Research Foundation; and has been a member of the Auditing Standards Committee of the AAA… Auditing Section, the AICPA's Computer Audit Subcommittee, the Information Technology Committee, the Blue Ribbon Commission on Audit Committees; and Vice-President and Treasurer of the American Accounting Association. He is a member of an audit committee, board, and governance committee of a publicly-traded company and a consultant to the audit committee of one of the largest public companies in China. Professor Rittenberg, a certified internal auditor, has served as staff auditor for Ernst & Young and has co-authored five books and monographs and numerous articles. He is married and is the father of two children.