CAPTCHA used to be a bulletproof solution to verify human users on all of the top sites on the internet, preventing bulk registrations. Through a challenge-response test that distinguished between human and computer users, CAPTCHA was supposed to prevent computers from creating spam and other harmful applications. It gradually became a frustration to human users trying to distinguish between a lower case l and the number 1. Now, CAPTCHA not only annoys human users, it is an invitation for computers to abuse a website. In essence, CAPTCHA IS DEFEATED.

TeleSign's Telephone Verification provides an excellent balance between security and ease-of use, making it the perfect solution to replace CAPTCHA. Unlike CAPTCHA, TeleSign prevents bulk registration. Plus, TeleSign's authentication uses one of the simplest, most widely-deployed technologies: the telephone. Some of the largest sites in the world use TeleSign as an easy yet powerful tool to block fraudsters and scammers.

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