idn-homograph-shield-extension
mmahess/idn-homograph-shield-extension
IDN Homograph Shield is a production-ready, security-hardened Manifest V3 Chrome Extension engineered to detect, highlight, and intercept IDN Homograph Phishing attacks in real-time. It targets lookalike script blendings (Cyrillic, Greek, Armenian, and Cherokee) and single-script extended Latin spoofing vectors
chrome-extensionweb-securityphishing-detectionunicode-securityhomograph-attackidn-securitymanifest-v3
Summary
IDN Homograph Shield is a Chrome extension designed to combat phishing attacks that use visually similar characters (homographs) from different scripts (like Cyrillic, Greek, Armenian, Cherokee) or extended Latin characters to spoof legitimate domains. It performs real-time DOM scanning, decodes Punycode, and intercepts dangerous clicks with a warning modal.