A deep learning‐based attack on text CAPTCHAs by using object detection techniques

Abstract Text‐based CAPTCHAs have been widely deployed by many popular websites, and many have been attacked. However, most previous cracks were based on classification algorithms that typically rely on a series of preprocessing operations or on many training samples, thus making such attacks compli...

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Bibliographic Details
Main Authors: Jiawei Nian, Ping Wang, Haichang Gao, Xiaoyan Guo
Format: Article
Language:English
Published: Wiley 2022-03-01
Series:IET Information Security
Subjects:
Online Access:https://doi.org/10.1049/ise2.12047
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