ACI Worldwide Expands Operations in Europe with Subsidiary in Greece

Providing regional support for customers in Greece and Cyprus and preparing
for potential growth as Athens shapes up for the 2004 Olympic Games

(OMAHA, Neb. - 25 November 2003) - ACI Worldwide (Nasdaq: TSAI), an
international provider of enterprise e-payment solutions, today announced
that it has extended its regional presence into Greece with a new subsidiary
in Athens. A launch party for customers and partners interested in
cooperating with ACI's Greek subsidiary is taking place today. The
subsidiary supports ACI's growing business in EMEA and its dedication to
providing local support to customers.

Greece is an important region for ACI both in terms of regional customers
and potential business growth. ACI is already in discussions with the
majority of the top tier banks in Greece including National Bank of Greece,
EFG Eurobank Ergasias and Commercial Bank of Greece (CBG - Emporiki). In
direct response to the needs of these banks, ACI has set up the Greek
subsidiary in Athens to provide improved customer service together with
local support, knowledge and expertise.

Rod Bungey, regional manager, ACI Worldwide (EMEA), comments: "Being
responsive to the demands of our customers is the key driver for the Greek
subsidiary, but we also recognise that there is a lot of potential in the
Greek and Cypriot banking markets and will use the new subsidiary as a
platform for future growth in this region. Greek banks are continually
investing in banking systems to remain at the forefront of technology and
customer service, and this creates an excellent opportunity for ACI's
enterprise e-payment solutions."

A further investment in technology and banking services is expected in this
region in anticipation of the Olympic Games in August 2004. Banks will be
expanding services to cater for the high level of international visitors
expected to visit the Games, and both banks and retailers will need to
ensure that their payment systems are scalable to cope with the increased
demand on technology. This creates opportunity for ACI's enterprise
solutions, which are robust, scalable and flexible enough to handle peaks of
transactional activity.

The ACI subsidiary in Athens will provide maintenance support for local
customers and undertake specific product development for the region. The
subsidiary is supported by a 24-hour response team based at ACI's EMEA
headquarters near London, dedicated to providing support to customers across
Europe.

Richard Launder, managing director, ACI Worldwide (EMEA) comments:
"Increasing fraudulent activity and the rollout of new chip-based cards
present many new challenges for Greek banks. ACI's Commerce Framework is
ideal to address many of these new needs, and combined with our local
subsidiary and our extensive experience in the market, this puts us in a
good position to service the key players in the region."

The new ACI subsidiary in Greece is the ninth regional operation set up by
ACI Worldwide in EMEA. Other sites include Germany, Spain, Italy, Middle
East (Bahrain), Moscow, South Africa, The Netherlands and the UK.

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