You can apply robot detection to event submission forms in Trumba. With robot detection enabled, event submitters must pass a CAPTCHA to attest that they are human, before they can submit an event. The placement is limited to the very top of the submission form and cannot be positioned at the bottom of the form.
(A CAPTCHA is a program that presents a test designed to protect websites from non-human input, or “bots.”) For more information, go to Set Up an Event Submission Form.