Author: Irfan Mehmood, Associate Professor in Business Analytics and AI, University of Bradford

You’re running late at the airport and need to urgently access your account, only to be greeted by one of those frustrating tests — “Select all images with traffic lights” or “Type the letters you see in this box”. You squint, you guess, but somehow you’re wrong. You complete another test but still the site isn’t satisfied. “Your flight is boarding now,” the tannoy announces as the website gives you yet another puzzle. You swear at the screen, close your laptop and rush towards the gate. Now, here’s a thought to cheer you up: bots are now solving these puzzles…