What are CAPTCHAs and Do How They Work?

The article explores the concept of CAPTCHAs, which are challenge-response tests used to distinguish between human users and automated bots on online platforms. CAPTCHAs present tasks that are easy for humans but difficult for machines, such as identifying distorted text or recognizing objects in images, to prevent automated abuse like spamming and unauthorized access. The triggers for CAPTCHAs include suspicious IP activities, failed sign-in attempts, and bot-like behaviors. Despite their security benefits and contributions to data integrity and compliance, CAPTCHAs can inconvenience users, pose accessibility issues, and sometimes be bypassed by advanced bots. The article suggests that CAPTCHAs should be used judiciously and complemented with other security measures to balance user experience and security needs.