Quick summary
- Term
- Homograph Attack
- Plain-English definition
- A homograph attack uses visually similar characters to make a domain look like another trusted domain.
- Technical definition
- A homograph attack uses visually similar characters to make a domain look like another trusted domain.
- Commonly confused with
- Related domain, DNS, registrar, API, or agent-infrastructure terms.
- Related terms
- IDN, Unicode Domain, Phishing
Definition
A homograph attack uses visually similar characters to make a domain look like another trusted domain.
Why it matters
Internationalized domains and lookalike names can be abused for phishing or impersonation.