Stock Trading History of Bown Clifford K

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Bown Clifford K since year 2005. The trader's CIK number is 1219985. At the time of this reporting, Bown Clifford K is the Exec. VP and CFO of Vasco Data Security International Inc (stock ticker symbol VDSI).

Stock purchases, sales, and option exercises reported by *Bown Clifford K* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-04-30	VDSI	Vasco Data Security International Inc	Sale	75,000	21.71	1,628,486
2007-04-30	VDSI	Vasco Data Security International Inc	Option Exercise	75,000	1.20	90,000
2006-08-07	VDSI	Vasco Data Security International Inc	Sale	25,000	9.00	225,000
2006-08-07	VDSI	Vasco Data Security International Inc	Option Exercise	25,000	.85	21,250

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Bown Clifford K (Exec. VP and CFO of Vasco Data Security International Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.