[StanAngeloff]

I'm not sure if this is actually how reCAPTCHA v2 works, but I've found moving my mouse and highlighting text immediately after ticking the box almost certainly passes the tests for human. I very rarely get asked to recognise images or pick X out of Y. When I don't do this, i.e., I don't move my mouse or highlight text on a page at random, I most certainly have to sit through a couple of screens of tests (I'm behind a shared IP with lots of users).

All this leads me to think mouse movements tracking is much more widespread.

[plopilop]

I have a similar experience. Filling in fields and switching with the TAB button then pressing ENTER always brings me to a visual recognition test, while manually clicking on the fields (and adding a bit of sloppiness) is most of the time an immediate validation from reCAPTCHA2.

However I'm pretty sure this was advertised or at least acknowledged by Google in the launching of reCAPTCHA v2.

[danso]

This is correct, mouse movement is one factor for Google's one-click Captcha:

https://www.wired.com/2014/12/google-one-click-recaptcha/

> IP addresses and cookies provide evidence that the user is the same friendly human Google remembers from elsewhere on the Web. And Shet says even the tiny movements a user’s mouse makes as it hovers and approaches a checkbox can help reveal an automated bot.

[orwin]

Oh, that's probably why i always have to go through those tests, reCAPTCHAv2 is not vimium-friendly.

[craftyguy]

I rarely use the mouse, so this might explain why recrapcha v2 always thinks I am a robot