A captcha is a type of test used to determine whether someone accessing a webpage is a human or a computer program/bot. Usually, a captcha will prompt the user to type specific words into a text box, rotate images, or identify items in a set of images. EVA uses captchas for security purposes to ensure that only a human being with the correct credentials can gain access to your event tech hub. 

EVA Tip: You can enable your attendees to fill out a captcha before logging into the event tech hub by accessing the Site Settings, click here to learn more.