Contact Form 7 switching to reCAPTCHA v3 for invisible spam protection

Google’s reCAPTCHA service protects your website against spam and other types of automated abuse. With Contact Form 7’s reCAPTCHA integration module, you can block abusive and junk contact form submissions and login attempts by spam bots that target pretty much any WordPress website on the internet. The latest version of the reCAPTCHA API is v3. Contact Form 7
Source