Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Board of Directors
Vector Intersect Security Acquisition Corp.

We hereby consent to the use in this Amendment No. 2 to the Registration
Statement on Form S-1 of our report dated May 24, 2006, on the financial
statements of Vector Intersect Security Acquisition Corp. (a corporation in the
development stage) as of December 31, 2005 and April 30, 2006 and for the period
from July 19, 2005 (inception) to December 31, 2005 and for the four months
ended April 30, 2006 and for the period from July 19, 2005 (inception) to April
30, 2006 which appears in such Registration Statement. We also consent to the
reference to our Firm under the caption "Experts" in such Registration
Statement.



/s/ Goldstein Golub Kessler LLP
GOLDSTEIN GOLUB KESSLER LLP
New York, New York

June 8, 2006