Fast Track 100

According to research by Microsoft, the average internet user types eight passwords each day to access everything from eBay to bank accounts. This company, founded in 2012, aims to replace multiple passwords and defend against the increasing problem of cyber-crime, which is predicted to cost businesses £2tn by 2019. Its AI-driven software builds a picture of each user that allows smartphone users to confirm their identity with a single swipe. If Callsign’s technology detects unusual behaviour, an alarm is triggered and access is denied. Chief executive Zia Hayat, 36, set up the company after working in the cybersecurity industry and raised $35m in a 2017 round led by Accel Partners, at which time, former McAfee chief executive David DeWalt, 54, became vice-chairman.

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Company details
ActivityAuthentication platform
LocationCentral London

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