New Homoglyph Attack Techniques Help Cybercriminals Spoof Trusted Domains

The report describes homoglyph/IDN homograph attacks that use visually similar Unicode characters (mixed scripts, bidirectional controls, Punycode) to create lookalike domains, emails, and filenames for phishing, credential harvesting, brand impersonation, and supply-chain abuse; it explains the technical enablers (IDNs, Punycode, Unicode normalization), highlights industry impacts, and recommends mitigations such as Unicode normalization and Punycode warnings, DNS filtering for new xn-- domains, certificate transparency monitoring, brand monitoring, phishing simulations, and enforcing multi-factor authentication.