CAPTCHAs are essential shields for websites to prevent denial-of-service attacks, spam messages, and fake accounts, improving cybersecurity and user experience.
Financial institutions use CAPTCHAs to safeguard client data and ensure the integrity of online voting by thwarting automated bots.
CAPTCHAs function by presenting challenges that are easy for humans but difficult for bots, with types such as text-based, image-based, audio-based, and behavior-based.
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