Respuesta :
CAPTCHAs prevent the use of bots in creating electronic contracts, because they are designed to make sure that actual humans are completing the transactions.
Let me know if you have any questions.
ANSWER:
CAPTCHAs principally avoids trick, infections or different malicious records which gives destructiveness to the gadget or the system.
EXPLANATION:
Since it a visually empathized puzzle which guarantees the action whether it is human or a gadget and furthermore gives a shied to all the obscure sorts of stuff.
During this modern technology many online frauds have been improved, Henceforth to overcome from these issues CAPTCHAs plays a major role for the security purpose. So that you can have safe browsing.