Hawk and Seal
Hawk and Seal LLC pioneered the use of secure "always on" communication with a mobile app bootstrapped by out of band authentication (OOBA). This approach which we then called Quasi Out of Band Authentication (QOOBA) provided the security of OOBA, yet without the inconvenience of having to interrupt user flow to have them check their voice or text messages. In addition to login authentication, the approach also included transaction authentication of various types. The innovation was acquired at an early stage by Authentify which later made it the basis for their 2CHK and XFA products.