How to secure my form with reCAPTCHA v2 & v3
To add another layer of protection for your forms, you can add a reCAPTCHA to your form. Neuron Theme works with reCAPTCHA v2 & v3. To add it to your form, in the Form Field section, add a field, click to open the field's settings. Under Type, choose reCAPTCHA or reCAPTCHA v3.
Set up the reCAPTCHA
Now that you've added reCAPTCHA to your form, you will need to head over to set up reCAPTCHA to get your unique site key.
To get started you will need to fill in the information required.
Type in the label of your website, this is particularly useful if you own multiple websites and you assign each one with a reCAPTCHA, also select what version of reCAPTCHA you want to use. In our case we selected the reCAPTCHA type in our form field, you should tick the reCAPTCHA v2 box. Add your domain and sign in with a valid Gmail account. After checking all the required boxed click on the Submit button and it will generate you your Site Key and Secret Key which you will need to add in the WP Dashboard > Neuron Control Panel.
Go to the WordPress Dashboard > Neuron Control Panel > Settings.
Paste the Site Key and the Secret Key that you generated earlier into the designated field for their corresponding reCAPTCHA and click on Save Changes. It should work just fine. Go back to your form and see it for yourself.