Credential Form Detection
The automated identification of login forms, password fields, and credential collection mechanisms on web pages to detect phishing sites.
Overview
Credential form detection goes beyond simple regex matching for input fields. Modern phishing pages use obfuscated HTML, dynamically generated forms, and JavaScript-based credential collection that evade pattern-based detection. Advanced credential form detection analyzes the DOM structure, identifies form fields and their submission targets, evaluates whether the form mimics a known brand's authentication flow, and checks where credentials are sent. This analysis is a critical component of phishing website scanners and browser extensions, as the presence of a credential form on an unexpected or suspicious domain is one of the strongest indicators of a phishing attack.
Real-World Examples
- ▸Detecting a hidden form field that captures passwords on a suspicious login page
- ▸Identifying a JavaScript-based credential collector that bypasses traditional form detection
- ▸Flagging a login form that submits credentials to a domain registered 24 hours ago
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