Callsign pulls in $35M Series A for its adaptive authentication platform

London-based Callsign has closed a $35 million Series A, led by Accel and early stage investor PTB Ventures, for an authentication platform which uses deep learning technology to power adaptive access control for enterprises — saying it can verify a person…

Callsign pulls in $35M Series A for its adaptive authentication platform

London-based Callsign has closed a $35 million Series A, led by Accel and early stage investor PTB Ventures, for an authentication platform which uses deep learning technology to power adaptive access control for enterprises — saying it can verify a person…