Gotta CAPTCHA 'Em All: A Survey of Twenty years of the Human-or-Computer Dilemma

no code implementations • 2 Mar 2021 • Meriem Guerar, Luca Verderame, Mauro Migliardi, Francesco Palmieri, Alessio Merlo

A recent study has found that malicious bots generated nearly a quarter of overall website traffic in 2019 [100].

Cryptography and Security