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In this tech talk, Dennis Deng discusses what CAPTCHAs are and how they're utilized. He dives into how Carnegie Mellon researchers first conceived of the concept, and the principles in which the majority of CAPTCHA systems are built up. He also mentions the various different types of CAPTCHAs, and their overall security in the growing web environment. Finally, he gives a little demo about how to integrate Google's reCAPTCHA into a Node application.

Project Members: Dennis Deng

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