# Prof. Arun Sundararajan on alternatives to captchas for online security

1 Faculty News February 1, 2013 ![Marketplace Logo](/sites/default/files/styles/246w/public/assets/images/marketplace_logo.jpg?itok=IIav3Udj)>

Excerpt from [Marketplace](http://www.marketplace.org/topics/business/captcha-22-when-online-security-hurts-sales) -- "That annoyance is why Ticketmaster says it’s switching to shorter, easier captchas. Instead of text, Ticketmaster customers will have to solve image puzzles. You might be presented with a picture of a car, a flower and a dog and be asked to identify the animal. 'This is something that is reasonably pleasant for the human being to go through but really difficult for computers to do,' says [Arun Sundarajan](http://w4.stern.nyu.edu/faculty/bio/arun-sundararajan), a professor of digital strategy at NYU’s Stern School of Business."

[Read more](http://www.marketplace.org/topics/business/captcha-22-when-online-security-hurts-sales)