AltaVista Shopping.com Strengthens Customer Experience With Trintech's PayWare eIssuer Technology.

Business Editors/High-Tech Writers

SAN MATEO, Calif.--(BUSINESS WIRE)--April 11, 2000

Trintech Group PLC (Nasdaq:TTPA)(Neuer Markt:TTP), a leading provider of secure electronic payment infrastructure solutions, today announced that AltaVista Shopping.com, a premier e-commerce site owned by AltaVista Company, will deploy Trintech's PayWare eIssuer technology to enhance its customers' Web experiences and provide a convenient and secure "one click" payment application.

The unique qualities of PayWare eIssuer will allow AltaVista Shopping.com to execute innovative merchandising programs. PayWare eIssuer also enables customers to "drag and drop" their payment cards to auto-populate eCommerce payment forms. The new features provide customers with a unique Web experience that can include customized shopping lists, rewards programs, real-time transaction information and PIN-protected security. AltaVista Shopping.com merchants can also benefit from PayWare eIssuer's differentiated and value-added Secure Internet Payment solution that can help increase revenue by dramatically reducing cardholder frustration during the purchasing experience.

The agreement with AltaVista also includes technical collaboration to develop applications built on Trintech technology in emerging payment areas, such as micro-payment on the Internet, chip-based payments and mobile commerce.

"Implementing Trintech technology is yet another means for AltaVista to empower our 54 million users," said Ken Neibaur, vice president, eCommerce platform, AltaVista Company. "PayWare eIssuer will extend the AltaVista brand to the desktop, making it easier for AltaVista shopping.com to help our users make informed and secure purchasing decisions."

"Successful eBusinesses offer personalization and a streamlined payment process," says John Harte, EVP of Global Sales, Marketing and Services at Trintech. "The power and flexibility of PayWare eIssuer allows AltaVista Shopping.com to create a customized Web experience and speed the checkout payment process and promote customer loyalty."

AltaVista Shopping.com is the only Web-wide comparison shopping guide offering both "what to buy and where to buy" solutions. Users have the ability to search across millions of products from hundreds of online and offline merchants. By specifying brand names, features, and price ranges, users can combine the results into a convenient side-by-side comparison chart. In addition, users can access customer and expert product reviews before making a final selection. Wireless access through the Palm VII handheld computer is also available, along with directions to the closest local brick and mortar merchants.

About AltaVista

AltaVista Company is the premier media and commerce network offering Internet users up-to-the-minute news, live video, content, search and shopping resources. The company integrates unique technology, products and services to deliver relevant results faster for both individuals and businesses. AltaVista is building on its heritage of technology and innovative leadership, offering informative services including AltaVista Search, AltaVista Live!, AltaVista Shopping.com, and AltaVista Free Internet Access combined with the microportal. AltaVista is a majority-owned operating company of CMGI, Inc. (Nasdaq:CMGI), Andover, Mass. AltaVista is headquartered in Palo Alto, Calif.

About Trintech

Founded in 1987, Trintech Group PLC is a leading provider of secure electronic payment solutions for card-based transactions in the physical world

and over the Internet. The company offers a complete range of payment software products for credit, debit, commercial and procurement card applications, as well as being a world leader in the deployment of payment solutions for Internet commerce that are fully SSL and SET compliant. Trintech's range of scalable open systems architecture solutions for UNIX and Windows NT platforms covers consumer, merchant and financial institution requirements for physical payments and the emerging world of electronic commerce. Trintech can be contacted in the U.S. at 2755 Campus Drive, San Mateo, CA 94003 (Tel: [phone]) and in Ireland at Trintech Building, South County Business Park, Leopardstown, Dublin 18 (Tel: [phone]). Trintech can be reached on the Web at http://www.trintech.com.

This press release may contain "forward looking statements" within The meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Any "forward looking statements" in this press release are subject to certain risks and uncertainties that could cause actual results to differ materially from those stated. Factors that could cause or contribute to such differences include the ability to develop, market and sell its eCommerce software, the market acceptance of the SSL or SET standards for eCommerce payment transactions, its ability to effectively respond to future changes in the e-payment software market and, in particular, the market acceptance by card issuers of PayWare eIssuer. Actual performance may also be affected by other factors more fully discussed in Trintech's Form F-1and Form 6-K for the quarter ended January 31, 2000 filed with the US. Securities and Exchange Commission.

This release contains forward-looking statements based on current expectations or beliefs, as well as a number of assumptions about future events, and these statements are subject to important factors and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. The forward-looking statements in this release address a variety of subjects including, for example, the expected benefits resulting from the agreement between AltaVista and Trintech and the expected functionality of the combination of AltaVista's and Trintech's technologies and products. The following factors, among others, could cause actual results to differ materially from those described in these forward-looking statements: AltaVista's products and technologies may not successfully interoperate with those of Trintech; the technical collaboration between the parties may not yield marketable applications and increased competition and technological changes in the markets in which AltaVista competes. For a detailed discussion of these and other cautionary statements, please refer to CMGI's filings with the Securities and Exchange Commission, including CMGI's Annual Report on Form 10-K for the most recently ended fiscal year.