In a report on the Mayor of London’s approach to ‘Countering Violent Extremism’ (Greater London Authority, 2019), it is heartening to read that 66% of Londoners would tell the police if they were worried about an individual being manipulated or exploited towards extremism or terrorism. At the same time, it is deeply concerning that the report found that 64% of Londoners would not know how to seek help from the authorities. The Mayor’s programme calls on the UK Government, National Counter-Terrorism Police HQ, and local authorities to take actions to address this awareness gap. The question is, how? And what role does technology play?