Release Details

SUNNYVALE, Calif. and WILMINGTON, Del. - August 12, 2003 - Bank One [NYSE: ONE] and Yahoo!*, a leading global Internet company, today announced an expansion and extension of their long-term alliance. The expanded relationship will offer additional promotional opportunities for both companies, including the marketing of the Bank One brand and its products and services on the Yahoo! network.

Bank One will also continue to issue the Yahoo! Titanium Visa* card, a co-branded credit card that enables cardmembers to earn rewards with every purchase.

Yahoo! Titanium Visa cardmember benefits currently include:

• One point for every dollar spent on the Yahoo! Visa card online and off.
• Easy online access to http://points.yahoo.com to obtain information about additional Yahoo! point earning opportunities and to redeem rewards. Redemption options include CDs, DVDs, video games and electronics equipment, as well as gift certificates for leading online and offline retail stores.
• Ability to donate points to featured charities throughout the year.
• No annual fee.
• 100 percent protection against unauthorized online and offline purchases.

Building on the success of the Yahoo! credit card program, Bank One will also market its co-branded credit cards featuring some of America's leading brands, as well as consumer and small business banking products on the Yahoo! network.

"We are very pleased to be able to expand our relationship with Bank One to include additional promotional and marketing opportunities for both Yahoo! and Bank One," said Denise McGuire, vice president, global alliances at Yahoo!. "The expansion of this agreement speaks to the companies' longstanding commitment to each other's products and services. We are excited about the compelling opportunities ahead."

Bank One will leverage the strength of the Yahoo! network to promote the Bank One brand in conjunction with its advertising campaigns. These integrated and broad-reaching campaigns will reinforce Bank One's position as a leading provider of choice, customization and flexibility in credit cards to consumers. The expansion of the alliance also allows Bank One to market Yahoo! premium services such as Yahoo! Finance Market Tracker to Bank One cardmembers.

"Yahoo! is a strategic partner and we are very pleased to continue our relationship with one of America's leading brands," said Tom Kerwin, executive vice president of relationship management for Bank One's card services division. "This relationship provides an excellent opportunity for both companies to grow their brands while offering new products and value to cardmembers."

For more information about the Yahoo! Titanium Visa card, visit http://card.yahoo.com.

Yahoo! Inc. is a leading provider of comprehensive online products and services to consumers and businesses worldwide. Yahoo! is the No. 1 Internet brand globally and the most trafficked Internet destination worldwide. Headquartered in Sunnyvale, Calif., Yahoo!'s global network includes 25 World properties and is available in 13 languages.

Bank One Corporation is the nation's sixth-largest bank holding company, with assets of nearly $300 billion. Bank One currently has more than 52 million credit cards issued and is the largest Visa card issuer in the world. Bank One offers a full range of financial services to large corporate and middle market commercial customers and retail consumers. This press release and additional information can be found on the Web at www.bankone.com.

* Yahoo! and the Yahoo! logos are registered trademarks of Yahoo! Inc. Visa is a registered trademark of Visa USA.

For more information:

Media:
Bank One
Anne Marie Taglienti
302-282-3948
anne_taglienti@bankone.com

Yahoo!
Nissa Anklesaria
408-349-7738
nissa@yahoo-inc.com