Autonomy's Unique End-to-End eDiscovery Platform Extends Market-Leading Position

Only Autonomy Offers Complete Solution to Chain Together Corporate Legal Departments and Law Firms through "Discover-in-Place" Technology

CAMBRIDGE, England and SAN FRANCISCO, January 27 - Autonomy Corporation plc (LSE: AU. or AU.L), a global leader in
infrastructure software for the enterprise, today announced that the
company's end-to-end eDiscovery platform continues to extend its
market-leading position with several significant wins around the world.
Powered by Autonomy's meaning-based technology, Autonomy is the only company
that brings together every component of the Electronic Discovery Reference
Model (EDRM) onto one platform. The platform's innovative "Discover-in-Place"
capabilities allow law firms to link directly to relevant enterprise
information for a particular investigation or case, resulting in radically
compressed timeframes for the eDiscovery process. The unique advantages of
the Autonomy legal technology platform are driving the company's continued
market-share growth, with several recent customer wins including BAE, Bingham
McCutcheon, CVR Energy, McAfee, and Paul, Hastings, Janofsky & Walker LLP.

"Autonomy's legal technology platform is ideally suited to meet the
challenges and realities of the modern day practice of law," said Michael E.
Lackey, Jr., Partner, Mayer Brown, LLP. "I believe that Autonomy's ability to
enable law firms to seamlessly collaborate with corporate clients may allow
us to speed timeframes and reduce costs in eDiscovery, allowing us to offer
higher quality service and better outcomes for our clients."

Corporate legal departments and law firms face significant obstacles to
achieving a fast and effective eDiscovery process. Corporations often depend
on multiple, disconnected point solutions from different technology
providers. Each step in the process requires a costly and time-consuming
hand-off of information. Because these tools lack the ability to form a
conceptual understanding of the data, they are unable to automate the process
of quickly identifying and holding only relevant information for each case.
As a result, in a process where speed and accuracy are of paramount
importance to success, law firms are often left with their hands tied while
they wait for access to their corporate clients' data.

Autonomy provides a unique chaining capability that transforms a slow,
reactive, manual, and costly process to one that is fast, proactive,
automated, and cost-efficient. With one platform that covers every step in
the EDRM, Autonomy can transparently move the data through the entire
eDiscovery process, eliminating the need for inefficient hand-offs of
information between technology and service providers.

"Autonomy's complete platform really helps us take a more proactive and
strategic approach to eDiscovery," said Ron Wills, Senior Corporate Counsel
and Legal Risk Manager, McAfee. "Autonomy's unique meaning-based approach
allows us to very quickly gain a thorough understanding of the relevance of
the information in a given matter. As a result, we are more prepared and can
collaborate with our outside counsel faster and more effectively."

Autonomy combines Autonomy iManage content management and Autonomy
Digital Safe, the world's largest private cloud at over 13 petabytes, to
deliver its unique chaining capability. Autonomy's meaning-based technology
automatically forms an understanding of the corporate data and maps its
relevance to particular matters and investigations. This Discover-in-Place
capability removes the requirement to copy the data to multiple repositories
and allows corporate legal departments to provide its law firms with direct,
secure access to the information. As a result, law firms can substantially
compress the timeframes and costs associated with eDiscovery, and corporate
legal departments can form a more proactive approach to managing its ongoing
eDiscovery demands.

"As a longstanding customer of Autonomy iManage, we are excited to see
how Autonomy has applied its unique meaning-based technology to the iManage
platform," said Robert Meadows, Chief Information Officer at global law firm
Bingham McCutcheon. "It is clear that Autonomy has a deep understanding of
the unique requirements of the legal technology market, and the company is
continually investing in its platform to deliver new capabilities that help
our lawyers improve productivity and enhance the quality of work product for
our clients. This is why we recently expanded our investment in the Autonomy
platform, and why we view Autonomy as an important long-term partner to
Bingham."

"Autonomy is redefining the way corporations and law firms look at the
legal technology market," said Mike Lynch, CEO of Autonomy. "By providing one
end-to-end platform that can directly chain together corporate legal
departments and their law firms, Autonomy is collapsing what were
traditionally two separate markets into one. This allows law firms to provide
new services to corporations such as 48 hour early case assessment or
outsourced legal hold, dramatically changing the landscape of corporate
risk."

Autonomy's Legal Solutions consist of the following:

    - Autonomy iManage WorkSite - the defacto standard intelligent
      content management system for law firms.
    - Autonomy iManage Universal Search - an intuitive search solution
      tailored to meet the needs of law firms.
    - Autonomy Records Manager - manages all forms of records: physical
      and electronic, including email, from a single policy management and
      administration center.
    - Autonomy iManage ConflictsManager - an innovative solution that
      enables law firms to streamline the management of their conflicts of
      interest process, iManage ConflictsManager detects patterns and reduces
      the risk and time for new client vetting procedures.
    - Autonomy Digital Safe - a massively scalable, hosted archive
      service that enables customers to outsource the storage and management
      of email messages, rich-media files, audio files, instant messages, and
      web content. With over 13 petabytes under management, Digital Safe is
      the world's largest private cloud.
    - Autonomy eDiscovery Appliance - the industry's only eDiscovery
      appliance that combines early case assessment and legal hold
      capabilities, the Autonomy eDiscovery Appliance provides an extremely
      fast and effective on-ramp to the eDiscovery process.
    - Autonomy Legal Hold - automates the legal hold process, data &
      custodian identification, notification management, preservation &
      collection, including industry-first hold-in-place capabilities.
    - Autonomy Investigator Early Case Assessment - enables early case
      assessment with the ability to analyze and categorize enterprise
      Electronically Stored Information (ESI) using the Autonomy IDOL
      platform.
    - Autonomy Introspect - a scalable review, analysis, and processing
      solution, Introspect marks, tags, annotates, redacts, and numbers all
      ESI.
    - Autonomy DSmail - a self-service archiving solution for email
      management, governance, and eDiscovery.

Autonomy - the Clear Leader in Legal Technology:

    - Ranked Strong Positive (the highest possible ranking) in the
      just-published Gartner MarketScope on eDiscovery (Autonomy press
      release:
      www.autonomy.com/content/News/Releases/2010/0111.en.html).
    - Recently recognized by IDC as the fastest growing and having the
      largest market share in the Worldwide Search and Discovery Market
      (Autonomy press release:
      www.autonomy.com/content/News/Releases/2009/1007.en.html).
    - Recently won 6 awards at the Sixth Annual Law Technology News
      Awards. Voted on by the readers of LTN, Autonomy was recognized in six
      different product eDiscovery categories, showcasing the breadth and
      strength of our end-to-end eDiscovery platform (Autonomy press release:
      www.autonomy.com/content/News/Releases/2010/0112.en.html).
    - Named Technology Provider of the Year at Legal Week's British
      Legal Awards 2009 (Autonomy press release:
      www.autonomy.com/content/News/Releases/2009/1207.en.html). Has
      the largest legal customer base with over 1,500 law firm customers,
      including 77 of the Global 100 firms, and over 20,000 corporate
      clients.
    - Manages the world's largest private cloud at over 13 Petabytes.

Please visit www.autonomy.com/chaining to learn more.

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, Daimler AG, 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.

    Randy Cairns                         Ian Bain
    Autonomy (US)                        The Red Consultancy (US)
    +1-408-953-7111                      +1-415-618-8806
    randy.cairns@autonomy.com            ian.bain@redconsultancy.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, Autonomy (US), +1-408-953-7111, randy.cairns at autonomy.com, or Ian Bain, The Red Consultancy (US), +1-415-618-8806, ian.bain at redconsultancy.com, or Edward Bridges, Financial Dynamics (UK), +44-207-831-3113, edward.bridges at fd.com, or David Vindel, The Red Consultancy (UK), +44-207-025-6529, david.vindel at redconsultancy.com