Guidance Software Inks Distribution Agreement with COMPUTERLINKS

  Guidance Software Inks Distribution Agreement with COMPUTERLINKS

Hundreds of IT Security VARs Can Now Source Guidance Software Products Quickly
     and Easily in North America and Europe through a Leading Value Added
                                 Distributor

Business Wire

PASADENA, Calif. -- May 15, 2013

Guidance Software, Inc. (NASDAQ: GUID), the World Leader in Digital
Investigations™, today announced that its enterprise solutions are now
available through COMPUTERLINKS, the next-generation distributor of
information technology, security and Internet technology solutions. The
agreement significantly expands the company’s reach in key markets worldwide,
addressing the demand for its enterprise security, e-discovery and digital
investigation solutions.

“Guidance Software has a notable reputation in the marketplace for delivering
powerful, industry-standard solutions,” said Russell Zientek, chief executive
officer for COMPUTERLINKS. “Because its cybersecurity products integrate
readily with those of other security vendors in our portfolio, we can deliver
more powerful and complete solutions to our customers.”

COMPUTERLINKS is a single source of supply for leading international hardware
and software manufacturers, offering logistics for both local and
international supply, as well as comprehensive technical support services.

“Guidance Software chose COMPUTERLINKS because of its solid reputation and
distinguished track record as a leading distributor specializing in IT
security in the major markets we are addressing. They regularly do business
with a comprehensive list of regional security VARs that work closely with
COMPUTERLINKS for various other complementary product lines,” said Vince
Schiavo, Vice President of Worldwide Sales for Guidance Software, Inc. “By
working with COMPUTERLINKS, we will identify, recruit, train and sell with
these proven VARs in all of the geographic areas and markets that they
address.”

COMPUTERLINKS will sell the full suite of EnCase® enterprise solutions from
Guidance Software within the United States, Canada, the United Kingdom and
Germany.

About Guidance Software, Inc.

Guidance Software is recognized as the industry leader in digital
investigation and computer forensics solutions. Its EnCase® Enterprise
platform is used by numerous government agencies and more than 65 percent of
the Fortune 100. Built on the EnCase Enterprise platform, Guidance Software
has developed EnCase® eDiscovery and EnCase® Cybersecurity software solutions,
which enable organizations to respond to litigation discovery requests,
proactively perform data discovery for compliance or data loss prevention
purposes, and conduct speedy and thorough automated security incident
response. Based in Pasadena, California, Guidance Software is a public company
traded on the NASDAQ under the ticker symbol GUID. Guidance Software has been
designated a leader in the Gartner Magic Quadrant for e-discovery for multiple
years in a row. For more information about Guidance Software, visit
www.guidancesoftware.com.

EnCase®, EnScript®, FastBloc®, EnCE®, EnCEP®, Guidance Software™ and Tableau™
are registered trademarks or trademarks owned by Guidance Software in the
United States and other jurisdictions and may not be used without prior
written permission. All other trademarks and copyrights referenced in this
press release are the property of their respective owners.

About COMPUTERLINKS

COMPUTERLINKS is one of the leading value-added distributors for international
top manufacturers in information technology. As the link between the
manufacturers and resellers, COMPUTERLINKS smoothes the path for the
successful distribution of intelligent IT solutions from the areas of
e-security and e-business. The COMPUTERLINKS product portfolio is geared to
the growing needs of customers for security in the field of ever more complex,
global IT structures. With branches in 18 countries COMPUTERLINKS’ reach is
constantly expanding to cover new territories as the company strives to retain
its position as a leading value added distributor (VAD) for market leading
international IT manufacturers.

Additional information about COMPUTERLINKS can be found at
www.computerlinks.com.

GUID-F

Contact:

Guidance Software, Inc.
Brigitte Engel, +1-626-229-9191
newsroom@guidancesoftware.com