The information contained in this Form 8-K shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

On October 9, 2012, VASCO Data Security International, Inc. (VASCO) issued a press release providing a preliminary estimate of revenues for the third quarter of 2012 and updated full-year 2012 guidance. The full text of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K.

On October 9, 2012, VASCO held a conference call with investors to discuss VASCO's preliminary estimate of revenues for the third quarter of 2012 and updated full-year 2012 guidance. A prepared script of the conference call is furnished as Exhibit 99.2 to this Current Report on Form 8-K. A transcript of the conference call is furnished as Exhibit 99.3 to this Current Report on Form 8-K.

(d) Exhibits. The following Exhibits are furnished herewith:

      Exhibit
      Number    Description
      99.1      Press release, dated October 9, 2012.

      99.2      Prepared script of October 9, 2012 Investor Conference Call.

      99.3      Transcript of October 9, 2012 Investor Conference Call.