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| July 8, 2013 | Writer’s Direct Contact 703.760.7798 LBard@mofo.com |
Via Edgar
Mr. Patrick Gilmore
Accounting Branch Chief
U.S. Securities and Exchange Commission
Division of Corporation Finance
100 F Street, N.E.
Washington, D.C. 20549
| Re: | Sourcefire, Inc. |
| Form 10-K for the Fiscal Year Ended December 31, 2012 |
| Filed February 28, 2013 |
| File No. 001-33350 |
Dear Mr. Gilmore:
This letter confirms an extension of time for Sourcefire, Inc. (the “Company”) to respond to the comments in your June 24, 2013 letter. The Company plans to submit its response by July 23, 2013.
If you have any additional questions or require additional information, please do not hesitate to contact me at (703) 760-7798.
| Sincerely, |
| /s/ Lawrence R. Bard |
| Lawrence R. Bard |
| cc: | Todd P. Headley, Sourcefire, Inc. |
| Douglas W. McNitt, Sourcefire, Inc. |
| Edmund D. Graff, Sourcefire, Inc. |