Blizzard 2011 Annual Report Download - page 45

CONTROLS AND PROCEDURES
Definition and Limitations of Disclosure Controls and Procedures.
Our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange
Act) are designed to reasonably ensure that information required to be disclosed in our reports filed under the Exchange Act is
(i) recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms and
(ii) accumulated and communicated to management, including our principal executive officer and principal financial officer, as
appropriate, to allow timely decisions regarding required disclosures. A control system, no matter how well designed and
operated, can provide only reasonable assurance that it will detect or uncover failures within the Company to disclose material
information otherwise required to be set forth in our periodic reports. Inherent limitations to any system of disclosure controls
and procedures include, but are not limited to, the possibility of human error and the circumvention or overriding of such
controls by one or more persons. In addition, we have designed our system of controls based on certain assumptions, which we
believe are reasonable, about the likelihood of future events, and our system of controls may therefore not achieve its desired
objectives under all possible future events.
Evaluation of Disclosure Controls and Procedures.
Our management, with the participation of our principal executive officer and principal financial officer, has
evaluated the effectiveness of our disclosure controls and procedures at December 31, 2011, the end of the period covered by
this report. Based on this evaluation, the principal executive officer and principal financial officer concluded that, at
December 31, 2011, our disclosure controls and procedures were effective to provide reasonable assurance that information
required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is (i) recorded, processed,
summarized, and reported on a timely basis, and (ii) accumulated and communicated to management, including our principal
executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosures.
Management’s Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting as
such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act. Our management, with the participation of our
principal executive officer and principal financial officer, conducted an evaluation of the effectiveness, as of December 31, 2011,
of our internal control over financial reporting using the criteria set forth by the Committee of Sponsoring Organizations of the
Treadway Commission (“COSO”) in Internal Control—Integrated Framework. Based on this evaluation, our management
concluded that our internal control over financial reporting was effective as of December 31, 2011.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.
Also, projections of any evaluation of effectiveness to future periods are subject to the risks that controls may become
inadequate because of changes in conditions, or that the degree of compliance with the policies and procedures may deteriorate.
The effectiveness of our internal control over financial reporting as of December 31, 2011 has been audited by
PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report included in this Annual
Report.
Changes in Internal Control Over Financial Reporting.
There have not been any changes in our internal control over financial reporting during the most recent fiscal quarter
that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
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