Blackberry 2014 Annual Report Download - page 179

I, James Yersh, certify that:
1. I have reviewed this annual report on Form 40-F of BlackBerry Limited;
2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;
3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly
present in all material respects the financial condition, results of operations and cash flows of the issuer as of, and for,
the periods presented in this report;
4. The issuer’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting
(as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the issuer and have:
a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the issuer, including its
consolidated subsidiaries, is made known to us by others within those entities, particularly during the period
in which this report is being prepared;
b. Designed such internal control over financial reporting, or caused such internal control over financial
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of
financial reporting and the preparation of financial statements for external purposes in accordance with
generally accepted accounting principles;
c. Evaluated the effectiveness of the issuer’s disclosure controls and procedures and presented in this report our
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period
covered by this report based on such evaluation; and
d. Disclosed in this report any change in the issuer’s internal control over financial reporting that occurred
during the period covered by the annual report that has materially affected, or is reasonably likely to
materially affect, the issuer’s internal control over financial reporting; and
5. The issuer’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control
over financial reporting, to the issuer’s auditors and the audit committee of the issuer’s board of directors (or persons
performing the equivalent function):
a. All significant deficiencies and material weaknesses in the design or operation of internal control
over financial reporting which are reasonably likely to adversely affect the issuer’s ability to record, process,
summarize and report financial information; and
b. Any fraud, whether or not material, that involves management or other employees who have a
significant role in the issuer’s internal control over financial reporting.
Date: March 28, 2014 /s/ James Yersh
Name: James Yersh
Title: Chief Financial Officer