Louis

Brute-force attacks are common on your WordPress login page if not dealt with properly. Googles reCaptcha is a great candidate for handling this issue.
Major features in WP reCaptcha Login include:
<ul>
<li>Utilizes reCaptcha V3 (no checking on boxes to prove you’re not a robot).</li>
<li>Quick Setup. Just add your reCaptcha Site Key and Secret key by going to Settings > Recaptcha Settings. </li>
</ul>
Note: 
You’re reCaptcha keys can be obtained from https://www.google.com/recaptcha/

WP reCaptcha Login

License: GPLv2 or later This plugin uses reCaptcha V3 to add an extra layer of security at your login screen, preventing brute-force attacks.

Costel Tudose

Protect your Contact Form 7 forms with Google CAPTCHA V2, hCAPTCHA or Cloudflare Turnstile CAPTCHA
Easy integration and supports multiple forms on a single page.
<h3>Google reCAPTCHA V2</h3>
Use <a href="https://www.google.com/recaptcha/admin" rel="nofollow ugc">https://www.google.com/recaptcha/admin</a> to generate Site key and Secret key.
When generating keys, choose Challenge (v2) -> “I’m not a robot” Checkbox
Update Site key and Secret key from Settings => Contact Form 7 Captcha => Google reCAPTCHA
To add reCAPTCHA V2 protection, insert [cf7sr-recaptcha] shortcode above the submit button in your Contact Form 7 form.
Default size of reCaptcha is normal, for compact size use shortcode: [cf7sr-recaptcha size=”compact”] 
Default color theme of reCaptcha is light, for dark theme use shortcode: [cf7sr-recaptcha theme=”dark”] 
Default type of reCaptcha is image, for audio type use shortcode: [cf7sr-recaptcha type=”audio”] 
You can combine multiple attributes, sample shortcode: [cf7sr-recaptcha size=”compact” theme=”dark”] 
You can also force reCaptcha to render in a specific language.
<h3>hCAPTCHA</h3>
Use <a href="https://dashboard.hcaptcha.com/signup" rel="nofollow ugc">https://dashboard.hcaptcha.com/signup</a> to generate Site key and Secret key.
Update Site key and Secret key from Settings => Contact Form 7 Captcha => hCAPTCHA
To add hCAPTCHA protection, insert [cf7sr-hcaptcha] shortcode above the submit button in your Contact Form 7 form.
Default size of hCAPTCHA is normal, for compact size use shortcode: [cf7sr-hcaptcha size=”compact”] 
Default color theme of hCAPTCHA is light, for dark theme use shortcode: [cf7sr-hcaptcha theme=”dark”] 
You can combine multiple attributes, sample shortcode: [cf7sr-hcaptcha size=”compact” theme=”dark”] 
You can also force hCAPTCHA to render in a specific language.
<h3>Cloudflare Turnstile CAPTCHA</h3>
Use <a href="https://www.cloudflare.com/en-gb/products/turnstile/" rel="nofollow ugc">https://www.cloudflare.com/en-gb/products/turnstile/</a> to generate Site key and Secret key.
Update Site key and Secret key from Settings => Contact Form 7 Captcha => Cloudflare Turnstile Captcha
To add Cloudflare Turnstile CAPTCHA protection, insert [cf7sr-turnstile] shortcode above the submit button in your Contact Form 7 form.
Default size of CAPTCHA is normal, for compact size use shortcode: [cf7sr-turnstile size=”compact”] 
Default color theme of CAPTCHA is auto, for light or dark theme use shortcode: [cf7sr-turnstile theme=”light”] or [cf7sr-turnstile theme=”dark”] 
You can combine multiple attributes, sample shortcode: [cf7sr-turnstile size=”compact” theme=”dark”] 
You can also force CAPTCHA to render in a specific language.

Contact Form 7 Captcha

Add reCAPTCHA V2, hCAPTCHA or Cloudflare Turnstile CAPTCHA to Contact Form 7

WP reCaptcha Login vs Contact Form 7 Captcha