Every day I am having 3 or 4 new spam accounts being created on my store. I have put one of the new Google Recaptchas on the create an account page but it has made no difference. How do I stop this?
There's a built-in CAPTCHA in Magento 1: Configuration - Customer configuraiton - CAPTCHA This should help stop the fake account creation. At least it worked for me. For other types of form spam you'll indeed need an extension.
This one works well: https://fishpig.co.uk/magento/extensions/block-robots-stop-spam/