AI Series: Most Significant TTP – Automated Browser-Driven CAPTCHA/2FA Bypass

Ibrahim Saud@tektrix

•updated Sep 25, 2026•0•0•3

Detects high-frequency authentication attempts originating from user agents associated with automation frameworks (Selenium, Playwright, Puppeteer, etc.). This pattern is often indicative of automated credential stuffing, brute force attacks, or CAPTCHA/2FA bypass attempts orchestrated by headless browsers.