VASCO Expands Cronto Visual Authentication And Transaction Signing Product Line With DIGIPASS 770 DIGIPASS 770 Authenticator Utilizes an Encrypted Color QR Code for Advanced Protection atanEntry-level Price Point OAKBROOK TERRACE, IL and HANOVER, Germany, VASCO Data Security International, Inc. (NASDAQ: VDSI), a global leader in March 17, 2016 News