Aon Announces Appointment to Combined Insurance Company of America Staff.

Business Editors

CHICAGO--(BUSINESS WIRE)--May 6, 2002

Aon (NYSE: AOC) today announced the following appointment to the Corporate Information Technology of Combined Insurance Company of America:

Koorosh Beigian, 38, has been appointed Chief Information Officer for Combined Insurance Company of America. Mr. Beigian was previously CEO for Science Reagents, a biotech company that licenses and distributes molecular reagents to the research community. Mr. Beigian also served as the CIO for AFLAC's U.S. operation, instituting technology governance practices for technology spending accountability, while aligning IT projects with corporate goals. Mr. Beigian has over 15 years of proven IT leadership experience, including Applications Development and Data Management, and holds a B.S. in Information Systems and an M.B.A. from Middle Tennessee State University. He is also a CPA.

"Koorosh knows what it means to work as a business partner," said Deems Davis, CIO for Combined Specialty Group. "His experience in building and deploying technology in the supplemental insurance marketplace will be an asset to Combined Insurance as we add to our profit and growth objectives." Mr. Beigian will report to Mr. Davis.

In 2001, Aon announced plans to spin off its underwriting operations to stockholders through a new company to be named Combined Specialty Group, Inc. The spin-off is scheduled for the 2nd quarter, 2002.

Aon Corporation (http://www.aon.com) is a holding company that is comprised of a family of insurance brokerage, consulting and insurance underwriting subsidiaries.

This press release may contain certain statements relating to future results, which are forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from historical results or those anticipated, depending on a variety of factors such as general economic conditions in different countries around the world, fluctuations in global equity and fixed income markets, changes in commercial property and casualty premium rates, the competitive environment, the actual cost of resolution of contingent liabilities, the final form of the business transformation plan, the ultimate cost and timing of the implementation thereof, the actual cost savings and other benefits resulting therefrom, whether the Company ultimately implements the proposed spin-off of its underwriting operations, and the timing and terms associated therewith, and events surrounding terrorists attacks of September 11, 2001, including the timing and resolution of related insurance and reinsurance issues. Further information concerning the Company and its business, including factors that potentially could materially affect the Company's financial results, are contained in the Company's filings with the Securities and Exchange Commission.