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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Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
Wiley
2022-03-01
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Series: | IET Information Security |
Subjects: | |
Online Access: | https://doi.org/10.1049/ise2.12047 |
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