Biographical Information

John Callahan

John Callahan is chief technology officer at Veridium. He has previously served as the associate director for information dominance at the U.S. Navy’s Office of Naval Research Global, London U.K. office, via an Intergovernmental Personnel Act assignment from the Johns Hopkins University Applied Physics Laboratory. 

Articles for John Callahan

Biometric Authentication Presents New Security Risks

While the customer service industry has been an early adopter and advocate of biometric authentication, certain risks might have been overlooked that could set consumer adoption back.