I am trying to implement google invisible reCAPTCHA (v2) on my site. I want to customize the challenge whenever it is thrown to user. How do I select which challenge to show to fraudulent users/bots?
I want to show arithmetic challenge instead of selecting the lights in images grid, I'm not able to find the option anywhere. Is it even possible to do that?
Currently, Google doesn't offer this as an option I think it's for a security reason as making it only digits will make it easier for OCRs to figure the answer easier as opposed to alphabet + numbers
I can't figure out a reason why you would only show numbers other than making it easier for the users If so you could check out reCAPTCHA v3 it provides a better user experience as
reCAPTCHA v3 returns a score for each request without user friction. The score is based on interactions with your site and enables you to take appropriate action for your site.
Instead of the usual challenges.