EX-15 10 dex15.txt ACKNOWLEDGEMENT LETTER OF INDEPENDENT AUDITORS Exhibit (15) ACKNOWLEDGMENT LETTER OF INDEPENDENT AUDITORS Shareholders and Board of Directors KeyCorp We are aware of the incorporation by reference in the Registration Statement (Form S-3 Nos. 333-___, 333-___, 333-____, and 333-____) and related Prospectus of KeyCorp, KeyCorp Capital V, KeyCorp Capital VI, and KeyCorp Capital VII of our review report, dated April 12, 2002, relating to the unaudited condensed consolidated interim financial statements of KeyCorp that is included in its Form 10-Q for the quarter ended March 31, 2002. /s/ Ernst & Young LLP Cleveland, Ohio May 17, 2002