CAPTCHA is a way to distinguish humans from machines by having the front end user type in a string of letters and numbers displayed. 
  1. Navigate to Fundraising > Donation Management
  2. Select the All Donation Forms tab
  3. Enter the name of the form
  4. Click Search
  5. Under the Actions column, click Edit
  6. On the left hand navigation pane, select Design Donor Screens
  7. Click Edit under the Actions column on the Donation Form
  8. In the gray box, on the left scroll area, under heading Select data elements to include in this form, find the Payment Fields section
  9. Highlight the Captcha data element
  10. Click the white Add > button in the middle of the grey box
  11. On the far right hand side of the screen, where Order is displayed, click the blue down arrow to place the Captcha data element where you want it
  12. Click the white Save Order and Edit Selected button
  13. You can elect to change any of the captcha data element options at the bottom of the page
  14. Click Save