# SoK: Machine vs. machine – A systematic classification of automated machine learning-based CAPTCHA solvers

> Research article (Computers & Security, 2020) · cited 16× · AI/ML

**Wikidata**: [openalex:W3037604015](https://www.wikidata.org/wiki/openalex:W3037604015)  
**Source**: https://4ort.xyz/entity/sok-machine-vs-machine-a-systematic-classification-of-automated-machine-learning-based-captcha-solvers