Update integrated Captcha(s) to be state-of-the-art
The built-in Captchas are very simple and for years now easily broken by the bots.
In V8 there was added the "old" recaptcha - but it has a bad usability, often even human users are not able to give the correct answer.
The only solution is to use a newer captcha from the Kentico marketplace.
But it is usable only on forms.
To use it as a "core captcha", you have to modify the core-code of MessageBoard Webparts, Blog Post Comment-Webpart and so on.
This is not that easy and breaks any way the possibility to install updates/bug fixes...
So, please, integrate the before mentioned state-of-the-art captcha into Kentico so that it can easily be used everywhere in the system.
If for any reason it is not possible provide at least a devnet-article about how to do it (at least for blog comments and messageboards).
It is impossible to post links... So you have to search yourself for "new recaptcha" in the marketplace...