I read that today captchas are validated using mouse movement tracking. How do they work on touch screen devices?
In: Technology
“Mouse movement tracking” is one aspect of it. There’s also the time to takes for you to respond, if you scroll, basically your entire interaction with the captcha.
On a touchscreen, some of that still applies: how long before you do anything, do you scroll? But where you touch the screen is effectively your mouse movement. You might think you just click a box. But your finger moves as you do this. It stays on the screen for a length of time. There are other factors to it, not just an instantaneous tap.
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