How to enable Captcha for customer portal on cloud

[Juan Agustin Lemos]

We have a free portal (it is not necessary to access with a username/password to create issues) and we would like to be able to show a capcha to prevent a boot from creating issues and carrying out an attack

[Ismael Garcia]

I have the same need and haven't been able to find a way to enable this for open customer portal, so it would require Captcha on submitting requests.

[Anne BEGHIN]

Hello community, we have a similar need : a customer portal facing end customers (hence withour requiring a login). How could we enable capcha to prevent intrusions? Any idea please?