Best captcha / human verification for xenForo 2.2 in 2024?

[Scandal]

Hello all!

Recently I see new registered bot accounts on my forum. I use Question & Answer human verification in my language but seems it is broken now.

What I could do?

Is there any addon for 2.2.2 to enable a new, more reliable human verification system?
Best captcha / human verification for xenForo 2.2 in 2024?

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