# Emerging-Image Motion CAPTCHAs: Vulnerabilities of Existing Designs, and Countermeasures

> Research article (IEEE Transactions on Dependable and Secure Computing, 2017) · cited 12× · AI/ML

**Wikidata**: [openalex:W2689215485](https://www.wikidata.org/wiki/openalex:W2689215485)  
**Source**: https://4ort.xyz/entity/emerging-image-motion-captchas-vulnerabilities-of-existing-designs-and-countermeasures