If spam bots are still bypassing Captcha on your formidable forms try doing this.

1. Create a hidden field in the form
2. Select the Submit button field and enable conditional logic
3. Choose Enable This Button > Any > Hidden
4. Then “Does not contain” and leave field blank

If a bot tries to fill out the form and fills in the hidden field, the submit button will be disabled.

Make sure you test once you go live.