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The Homograph Illusion: Not Everything Is As It Seems

· Published 08/08/2025 16:36 · Modified 10/08/2025 20:43

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Published
08/08/2025 16:36
Modified
10/08/2025 20:43
Tags
2025-08-08 brand impersonation character substitution email security homograph attack phishing social engineering unicode
Related entities
8 observables, 4 techniques (mitre)

Description

Homograph attacks involve using non-Latin characters that visually resemble Latin characters to create words that appear legitimate but are actually different. This technique allows attackers to evade detection and analysis, crafting malicious emails that can lead to credential theft or malware infection. The article examines three real-world cases of homograph attacks used in attempts, including impersonation of well-known brands and document-sharing platforms. These attacks exploit visual similarities to deceive users, bypass security filters, and impersonate trusted entities. The rise of AI-driven makes this vector even more dangerous. To protect against homograph attacks, it's crucial to carefully examine sender addresses, be wary of unknown senders, and avoid engaging with suspicious attachments or URLs.

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