Autonomy Announces Rescue Program for Microsoft FAST Search Customers and OEM Partners

'Put FAST in the Past' Program Provides Customers and Software Vendors with Business Continuity

CAMBRIDGE, England and SAN FRANCISCO, December 2, 2010 - Autonomy Corporation plc (LSE: AU. or AU.L), a global leader in
infrastructure software for the enterprise, today announced "Put FAST in the
Past," a rescue program for current Microsoft FAST Search customers and OEM
partners. The purpose of the program is to enable customers and software
vendors that depend and develop on platforms and operating systems other than
Microsoft - such as Unix and Linux - to take advantage of Autonomy's advanced
and comprehensive enterprise search technology.

In February, Microsoft FAST announced it plans to "end-of-life" Unix and
Linux versions of its enterprise search product. As of December 31, 2010
Microsoft FAST will discontinue mainstream and extended support for 17
product versions. These imminent events are causing disruption to enterprise
customers with deployed applications and to software vendors who embedded
end-of-life technology components.

Businesses and software vendors are now forced to choose between making a
painful switch to an entirely new infrastructure and operating system, or
select a new enterprise search technology. This is causing massive disruption
in the market, as the majority of the enterprise search market runs on
platforms other than Microsoft. IDC's Worldwide Search and Discovery Software
Report states that Unix, Linux, and other operating systems accounted for 65%
of market share in 2009.(1) This sizeable market has made considerable
investments in business applications and technology products that run on
these operating systems, and is now looking to "future proof" their business
by investing in technology that will enable them to continue to innovate on
their platform of choice for years to come.

Autonomy's enterprise search technology, the Intelligent Data Operating
Layer (IDOL), provides a far superior technology for customers and OEM
partners alike. IDOL automatically recognizes and understands meaning within
all forms of information, allowing individuals to search by concepts rather
than by keywords. Autonomy offers the most extensive connectivity, to
hundreds of data types, and over 500 advanced functions, such as education,
video and social media search, and language independence. Autonomy is the
only company that provides enterprise search that is fully integrated with
content management, multichannel optimization, archiving, eDiscovery, records
management, and rich media management, giving organizations a powerful
platform from which to power, promote, and protect their organization.

These important differentiators have driven Autonomy's clear leadership
in the enterprise search market. According to IDC's report titled "Worldwide
Search and Discovery 2009 Vendor Shares: An Update on Market Trends,"
Autonomy increased its market share lead to 15.3% in 2009.(2) This share
represents a 50% lead over the next closest keyword search competitor,
Microsoft, and is nearly double that of the third place vendor, Google.

Now is the time for businesses and technology companies to make the
switch to Autonomy. Rather than rip out and rebuild search business
applications and technology offerings on Microsoft Office Sharepoint Server,
organizations can maintain their current platform and operating
infrastructure and make a seamless move to Autonomy enterprise search. An
Autonomy IDOL migration tool will index an organizations data, and Autonomy
IDOL enterprise search can be used transparently from within Microsoft
applications, ensuring a smooth and easy transition for the IT department and
end users alike.

Autonomy's "Put FAST in the Past" rescue program consists of the
following:

    - Autonomy will match an organization's Microsoft FAST license
      implementation with like-for-like capability on all platforms - for 50%
      of the organization's original license fee for orders placed before
      December 31.
    - Autonomy will provide conceptual search and a Sharepoint
      connector free of charge
    - Autonomy's Microsoft FAST to IDOL migration tool will index an
      organization's data, enabling a seamless migration
    - Autonomy IDOL enterprise search can be used transparently from
      within Microsoft applications including Word, SharePoint, etc.,
      providing end users with a seamless and easy transition

Please visit www.autonomy.com/fast to learn more about the
Autonomy "Put FAST in the Past" rescue program.

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.

(1) IDC, Worldwide Search and Discovery 2010 - 2014 Forecast, Doc
#222715, April 2010

(2) IDC, Worldwide Search and Discovery 2009 Vendor Shares: An Update on
Market Trends, Doc # 223926, June 2010

    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

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