There are two actions in Sphere forms that can be adjusted to raise the protection levels against spam activity:

  1. Enable CAPTCHA on a form to help distinguish whether the form's user is a human or a computer. CAPTCHAs are used by many websites to prevent abuse from bots, or automated programs usually written to generate spam.
  2. Raise the level of credit card verification on the form.  This allows for extra confirmation that transactions are valid by matching up address and/or Zip codes with the cards being used in the online transaction.  If the verification fails, so does the transaction.