Detecting and breaking captcha
US9223997B2 Патенты
A security device may receive a request from a client device and intended for a server device. The security device may identify the request as being associated with a malicious activity. The malicious activity may include one or more undesirable tasks directed to the server device. The security device may generate a challenge-response test based on iden tifying the request as being associated with the malicious activity. The challenge-response test may be generated using
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