Exhibit 99.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 11-K of the EMC Corporation 401(k) Savings Plan (the “Plan”) for the fiscal year ended December 31, 2002 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Teuber, Jr., Executive Vice President and Chief Financial Officer of EMC Corporation, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

/s/    WILLIAM J. TEUBER, JR.        

William J. Teuber, Jr.

Executive Vice President and Chief Financial Officer

June 26, 2003

This certification accompanies this Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed filed by EMC Corporation for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

A signed original of this written statement required by Section 906 has been provided to EMC Corporation and will be retained by EMC Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

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