Autonomy Demonstrates Innovative Technologies at Gartner ITxpo

Showcases Power of Market-Leading Innovations in Hot Emerging Sectors

ORLANDO, Florida, October 21, 2010 - Gartner ITxpo — Autonomy Corporation plc (LSE: AU. or AU.L), a global
leader in infrastructure software for the enterprise, today showcased the
power of its Meaning Based Computing platform through four innovative
technologies. Based on Autonomy's unique ability to understand meaning within
all forms of content, these four technologies–including a gesture-based user
interface, advanced social and news media monitoring, multichannel analytics,
and access to mobile cloud-based content–highlight the company's unique
ability to develop industry-firsts.

"Businesses today enjoy thrilling new opportunities to inform, persuade,
and build trust and loyalty with customers across multiple channels," said
Fernando Lucini, Chief Architect at Autonomy. "The explosive adoption of
mobile devices such as the iPhone and iPad–and social media sites like
Facebook, Twitter, and YouTube–has produced a wealth of human friendly
information, and people are looking for new ways to engage with that content.
Autonomy's meaning-based innovations provide new interfaces and analytic
capabilities, allowing people and businesses to maximize the ever-expanding
volume of human friendly information."

IDOL's New Gesture-Based User Interface

Autonomy's gesture-based user interface enables computers to recognize
motion–enabling humans to interact naturally with information.

    - Revolutionary technology engages people with its visual sense of space.
    - Allows people to physically manipulate and engage with clusters of
      information. These clusters are images which enable individuals to
      drill down for more detail or expand for a broader view of the
      information.
    - Enables businesses to meet the increasing demand for gesture-based
      products and natural environments, improving the customer experience.
      For instance, businesses with one-dimensional or two-dimensional
      interfaces--such as magazines and smart phones--can provide people with
      a three-dimensional experience, allowing people to interact with their
      products in enhanced ways.

Autonomy Explore

Autonomy Explore identifies critical patterns across all customer
touchpoints including contact centers, web properties, and social media. This
unique technology enables business leaders to identify the "unknown unknowns"
that exist in the world's data, allowing them to take proactive action to
protect their brand and capitalize on emerging business opportunities.

    - Understands that most information about a product or service
      that surfaces on Facebook or Twitter is not relevant; instead, cuts
      through the noise and taps into the customer data with valuable,
      actionable insights.
    - Transcend barriers created by disparate systems, point solutions,
      and organizational structures in order to increase revenue across
      existing and new channels.
    - Extends Autonomy's market-leading supervision, policy, and
      compliance platform to monitor, govern, and protect organizations across
      social media channels. Maintains compliance with new regulatory
      requirements for employees engaging on social media sites.

Autonomy Consolidated Archive

Autonomy Consolidated Archive (ACA), Autonomy's comprehensive archiving
platform, enables customers to leverage market-leading archiving technology
from any point of access, whether on-premise, cloud-based, hybrid, or
appliance-based.

    - Customers can view archived email just as they would view real-time
      email from their mobile devices, including the iPhone and iPad.
    - ACA's modular, secure platform integrates with Autonomy's 17 Petabyte
      private cloud.

NewSocial 24×7

NewSocial 24×7 leverages the power of Autonomy's Intelligent Data
Operating Layer (IDOL) to provide media monitoring for print, online, and
broadcast news.

    - Given a hot news topic, NewSocial 24x7 will present the user with
      results that can be viewed by media type or date.
    - Users can view videos or hear radio broadcasts natively, and choose to
      push rich media files to their clients or employees.
    - Provides users with an automatically personalized list of news that may
      interest them.

Visit Autonomy's Innovation Showcase at the Gartner ITxpo, Walt Disney
Swan and Dolphin in Orlando, Florida, Booth #1.

About Autonomy

Autonomy Corporation plc (LSE: AU. or AU.L), a global leader in
infrastructure software for the enterprise, spearheads the Meaning Based
Computing movement. IDC recently recognized Autonomy as having the largest
market share and fastest growth in the worldwide search and discovery market.
Autonomy's technology allows computers to harness the full richness of human
information, forming a conceptual and contextual understanding of any piece
of electronic data, including unstructured information, such as text, email,
web pages, voice, or video. Autonomy's software powers the full spectrum of
mission-critical enterprise applications including pan-enterprise search,
customer interaction solutions, information governance, end-to-end
eDiscovery, records management, archiving, business process management, web
content management, web optimization, rich media management and video and
audio analysis.

Autonomy's customer base is comprised of more than 20,000 global
companies, law firms and federal agencies including: AOL, BAE Systems, BBC,
Bloomberg, Boeing, Citigroup, Coca Cola, Deutsche Bank, DLA Piper, Ericsson,
FedEx, Ford, GlaxoSmithKline, Lloyds Banking Group, NASA, Nestle, the New
York Stock Exchange, Reuters, Shell, Tesco, T-Mobile, the U.S. Department of
Energy, the U.S. Department of Homeland Security and the U.S. Securities and
Exchange Commission. More than 400 companies OEM Autonomy technology,
including Symantec, Citrix, HP, Novell, Oracle, Sybase and TIBCO. The company
has offices worldwide. Please visit www.autonomy.com to find out more.

Autonomy and the Autonomy logo are registered trademarks or trademarks of
Autonomy Corporation plc. All other trademarks are the property of their
respective owners.

    Autonomy Editorial Contacts:

    Randy Cairns                         Louise Kehoe
    Autonomy (US)                        Ogilvy PR (US)
    +1-408-953-7111                      +1-415-677-2739
    Randy.cairns@autonomy.com            louise.kehoe@ogilvypr.com

    Edward Bridges                       David Vindel
    Financial Dynamics (UK)              The Red Consultancy (UK)
    +44-207-831-3113                     +44-207-025-6529
    edward.bridges@fd.com                david.vindel@redconsultancy.com

Randy Cairns of Autonomy (US), +1-408-953-7111, Randy.cairns at autonomy.com; Edward Bridges of Financial Dynamics (UK), +44-207-831-3113, edward.bridges at fd.com; Louise Kehoe of Ogilvy PR (US), +1-415-677-2739, louise.kehoe at ogilvypr.com; David Vindel, The Red Consultancy (UK), + 44-207-025-6529, david.vindel at redconsultancy.com