British Airways Enhances Customer Engagement and Drives Up Conversion Rates With Autonomy Optimost

Achieves a 54% Increase in Promotional Flight Upgrades

CAMBRIDGE, England and SAN FRANCISCO, April 27, 2010 - Autonomy Corporation plc (LSE: AU. or AU.L), a global leader in
infrastructure software for the enterprise, today announced that British
Airways is using Autonomy Optimost's Marketing Optimization Platform to boost
customer engagement and significantly drive up conversion rates on its
website, www.britishairways.com. Autonomy Optimost was selected after
a competitive procurement owing to its technological superiority, unique
managed service, comprehensive marketing optimization offering and excellent
track record of generating unmatched results for its clients.

British Airways is a global, full-service airline, with over 40,000
employees. Nearly 2 million people use ba.com to service their booking every
month, with 1.5 million checking-in online monthly. In order to ensure that
its website continues to work to its full potential and to monetize on the
visitors attracted to it, British Airways was looking for a simple and
easy-to-use managed service solution, which requires minimal reliance on IT
support, can automate complex tests of millions of variables and perform
advanced intelligent analytics for maximum results.

"Autonomy Optimost was the only solution capable of meeting and exceeding
our demanding requirements and its customer satisfaction track record is
second to none," said Mike Tomlinson, evolution executive, BA.com and Mobile
Delivery. "It has provided the means and incentive to constantly improve the
site by putting our customers in the driving seat. By taking the guesswork
out of important content, layout and design decisions, Autonomy Optimost has
ultimately enabled us to benefit from a dramatic increase in
click-through-rates (CTR) and conversions."

Autonomy Optimost optimizes all areas of your business to maximize
profitability and drive growth. Its unique Marketing Optimization Platform
brings advanced analytics, pattern-matching, optimization, and targeting
under a single marketing platform to automatically identify and execute the
most optimal marketing strategy.

"Autonomy Optimost enables businesses to depart from legacy approaches
relying on ill-equipped metrics and guesswork, and empowers them to gain a
true understanding of their customers' preferences, intent and behavior,"
said Andy Jenks, CEO of Autonomy Optimost. "Businesses are increasingly
turning to Autonomy Optimost to democratize their marketing campaigns and
design process and we are delighted to see British Airways achieve these
fantastic results with Autonomy Optimost."

Future plans include leveraging Autonomy Optimost's technology across all
websites, including hosted recommendations and segmentation and targeting to
different customer profiles.

Please visit www.autonomy.com/optimost to find out more, or ba.com
for further information on the airline.

About Autonomy Optimost

Autonomy Optimost leverages unique meaning-based technology to deliver
the industry's most comprehensive suite of marketing optimization solutions.
It delivers automated capabilities such as advanced analytics,
pattern-matching, optimization, and targeting to optimize marketing across
multiple channels to drive business growth. Marketers can now take a
proactive and automated approach for identifying emerging customer segments
and determining the most effective way to market to them, including the most
optimal product recommendations, promotional offers, pricing strategies, and
advertising placements.

Autonomy Optimost can be seamlessly integrated into websites and landing
pages to ensure that web design and content delivery are returning the
highest business results. Available as a hosted and onsite solution,
marketers can rely on Autonomy Optimost to analyze and act on market and
customer information. The world's leading corporate brands, including
Allstate, Avis, Bank of America, Delta Air Lines, EarthLink, FT.com, John
Lewis, Lenovo, LexisNexis, and Shutterfly leverage Autonomy Optimost to
maximize profitability.

To learn more about Autonomy Optimost, visit www.interwoven.com/optimost

    Autonomy Editorial Contacts:

    Assia Svinarova                David Vindel
    Autonomy (UK)                  The Red Consultancy
    +44-1223-448000                +44-207-025-6529
    assias@autonomy.com            david.vindel@redconsultancy.com

    Edward Bridges                 Ian Bain
    Financial Dynamics (UK)        The Red Consultancy (US)
    +44-207-831-3113               +1-415-618-8806
    edward.bridges@fd.com          ian.bain@redconsultancy.com

Assia Svinarova of Autonomy (UK), +44-1223-448000, assias at autonomy.com; or Edward Bridges of Financial Dynamics (UK), +44-207-831-3113, edward.bridges at fd.com; or David Vindel of The Red Consultancy, +44-207-025-6529, david.vindel at redconsultancy.com, or Ian Bain of The Red Consultancy (US), +1-415-618-8806, ian.bain at redconsultancy.com