Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement on Registration Statement Nos. 333-163367, 333-172459, 333-175985, 333-179751 and 333-186921 on Form S-8 of our reports dated February 27, 2014, relating to the consolidated financial statements and financial statement schedule of Fortinet, Inc. and subsidiaries (collectively, the “Company”), and the effectiveness of the Company’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of Fortinet, Inc. for the year ended December 31, 2013.
/s/ DELOITTE & TOUCHE LLP
San Jose, California
February 27, 2014