Exhibit 32.2

                        CERTIFICATION OF PERIODIC REPORT

I, Michael O'Reilly, Vice Chairman and Chief Financial Officer of The Chubb
Corporation (the "Corporation"), certify, pursuant to 18 U.S.C. Section 1350
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)      the Quarterly Report on Form 10-Q of the Corporation for the quarterly
         period ended June 30, 2005 (the "Report") fully complies with the
         requirements of Section 13(a) or 15(d) of the Securities Exchange Act
         of 1934 (15 U.S.C. 78m or 78o(d)); and

(2)      the information contained in the Report fairly presents, in all
         material respects, the financial condition and results of operations of
         the Corporation.

Dated:  August 8, 2005



/s/ Michael O'Reilly
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Michael O'Reilly
Vice Chairman and Chief Financial Officer