Adding reCAPTCHA to the admin login page Is there any plugin or relatively straightforward and accepted way to add a recaptcha to the login for the admin page?

My research so far has come up with nothing. I'm curious if others have looked into this with any result.
We do this at Transform Studios at the DNS level by using cloudflare’s Web Application Firewall. You can basically add a rule which targets any url that matches the control panel login page and secure it with a captcha challenge before giving access to the page. I’ve found this is best to handle security before visitors even hit your site and more importantly prevents any core code base changes or creation of addons.