UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No.   )

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o  Preliminary Proxy Statement

o  Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

o  Definitive Proxy Statement

þ  Definitive Additional Materials

o  Soliciting Material Pursuant to §240.14a-12

The Chubb Corporation

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to be held on 4/29/08. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The following materials are available for view: Proxy Statement and Annual Report To view this material, have the 12-digit Control #(s) available and visit: www.proxyvote.com If you want to receive a paper or e-mail copy of the above listed documents you must request one. There is no charge to you for requesting a copy. To facilitate timely delivery please make the request as instructed below on or before 4/15/08. To request material: Internet: www.proxyvote.com Telephone: 1-800-579-1639 **Email: sendmaterial@proxyvote.com **If requesting material by e-mail please send a blank e-mail with the 12-digit Control # (located on the following page) in the subject line. Requests, instructions and other inquiries will NOT be forwarded to your investment advisor. THE CHUBB CORPORATION Vote In Person Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the Annual Meeting you will need to request a ballot 15 Mountain View Road to vote these shares. WARREN, NJ 07059 Vote By Internet To vote now by Internet, go to WWW.PROXYVOTE.COM. Use the Internet to transmit your voting instructions and for electronic delivery of information up until 11:59 P.M. Eastern Time on April 28, 2008. Have your notice in hand when you access the website and follow the instructions. R1CHB1

Meeting Location The Annual Meeting for holders as of 3/10/08 is to be held on 4/29/08 at 10:00 A.M., Eastern Time at: 15 Mountain View Road Warren, NJ 07059 FOR MEETING DIRECTIONS PLEASE CALL: 908-903-2000 R1CHB2

Voting items A Election of Directors B Other Matters 1. Our Board of Directors recommends a Our Board of Directors recommends a vote vote “FOR” the listed nominees 1a — 1l. “FOR” Proposal 2. 1a - Zoë Baird 2. To ratify the appointment of Ernst & Young LLP as independent auditor. 1b — Sheila P. Burke 1c — James I. Cash, Jr. 1d — Joel J. Cohen 1e — John D. Finnegan 1f — Klaus J. Mangold 1g - Martin G. McGuinn 1h — Lawrence M. Small 1i — Jess Søderberg 1j — Daniel E. Somers 1k — Karen Hastie Williams R1CHB3 1l — Alfred W. Zollar

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