Hal Granoff leads the strategy and expansion of Callsign's Intelligence Driven Authentication in the United States. Previously, Hal was a Senior Director at Early Warning, where he was responsible for developing authentication solutions to protect financial institutions from the threat of fraud in mobile and online platforms. Prior to that, he served in leadership roles at Cendant Corporation (currently Affinion Group), where he managed account relationships for top credit card issuers, and MasterCard International, where he contributed to the company's growth of global acquiring initiatives in Asia, South America, and Canada. He earned his undergraduate degree from the University of Wisconsin at Madison while serving as Regional Director of AIESEC, an international student-run organization.