SecurImage is by Ideal Extensions, and I have used this plugin for about 12 yrs now. It comes with Contact Enhanced. But I'm not using it now. When you go to Google to get the captcha codes, they are now using V3 which says to use only the one code. This version does not have an image. It tracks the speed of responses so it can tell if it is bots or humans. I found the Joomla plugin for it late yesterday, and now I've got it working on another site. So I'm going to install this newest Google captcha V3 plugin.
When it is working, you will see a circle icon image, and when you mouse over it, it slides out and says "This site is protected by reCaptcha." I've got it working on our E-911 site and now know how to fix it on the Chamber site as well.
I'm sorry if I asked you to fix something that wasn't template related, as it turns out, but I did get it figured out so that was a good thing. Google has driven me crazy with their newest iterations of reCaptcha. Now you only need the Site Key, not the secret key. Google is no longer issuing V2 keys, at least on my end. And Joomla hasn't fully caught up because even though I selected the plugin as the default Security, it doesn't offer that as a selection in the configuration file. I'm attaching some images so it may help explain what I'm trying to say. I do not consider myself to be an expert in any of Joomla, but I do my best.
Would you like a login to this site to look at the setup? Let me know and I'll send you a private post.