# ENDORSEMENT NO. 6

**This endorsement, effective 12:01 A.M., MAY 21, 1978, forms a part of policy No. 551-28-81 issued to INTERNATIONAL BUSINESS MACHINES by the Lexington Insurance Company**

## PROFESSIONAL LIABILITY EXCLUSION

This policy shall not apply to any claims or losses arising out of any breach of professional duty by reason of any negligent act, error or omission whenever or wherever committed or alleged to have been committed on the part of the insured or any person who has been, is now or may hereafter during the existence of this insurance be employed by the insured in the conduct of any business conducted by or on behalf of the insured.

All other terms and conditions remain unchanged.