UK’s Callsign raises $35M Series A led by Accel for its AI-based adaptive authentication platform for enterprises (Natasha Lomas/TechCrunch)

Natasha Lomas / TechCrunch:
UK’s Callsign raises $ 35M Series A led by Accel for its AI-based adaptive authentication platform for enterprises  —  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 …


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