Exhibit 23.1
Consent
of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in this Amendment
No. 1 to Registration Statement
No. 333-176557
on
Form S-4
of our reports dated February 18, 2011, relating to the
consolidated financial statements of ACI Worldwide, Inc. and
subsidiaries (the “Company”) as of and for the years
ended December 31, 2010 and 2009, and the effectiveness of
the Company’s internal control over financial reporting as
of December 31, 2010, appearing in the Annual Report on
Form 10-K
of the Company for the year ended December 31, 2010, and to
the reference to us under the heading “Experts” in the
Prospectus, which is part of such Registration Statement.
/s/ Deloitte &
Touche LLP
Omaha, Nebraska
September 15, 2011