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The homoglyphs U+0061aLATIN SMALL LETTER A and U+0430аCYRILLIC SMALL LETTER A overlaid. In the image, both characters are set in Helvetica LT Std Roman.
In orthography and typography, a homoglyph is one of two or more graphemes, characters, or glyphs with shapes that appear identical or very similar but may have differing meaning. The designation is also applied to sequences of characters sharing these properties.
In 2008, the Unicode Consortium published its Technical Report #36[1] on a range of issues deriving from the visual similarity of characters both in single scripts, and similarities between characters in different scripts.
Examples of homoglyphic symbols are (a) the diaeresis and umlaut (both a pair of dots, but with different meaning, although encoded with the same code points); and (b) the hyphen and minus sign (both a short horizontal stroke, but with different meaning, although often encoded with the same code point). Among digits and letters, digit 1 and lowercase l are always encoded separately but in many typefaces are given very similar glyphs, and digit 0 and capital O are always encoded separately but in many typefaces are given very similar glyphs. Virtually every example of a homoglyphic pair of characters can potentially be differentiated graphically with clearly distinguishable glyphs and separate code points, but this is not always done. Typefaces that do not emphatically distinguish the one/el and zero/oh homoglyphs are considered unsuitable for writing formulas, URLs, source code, IDs and other text where characters cannot always be differentiated without context. Fonts which distinguish glyphs by means of a slashed zero, for example, are preferred for those uses.
In orthography and typography, a homoglyph is one of two or more graphemes, characters, or glyphs with shapes that appear identical or very similar but...
they are homographs, hence the term for the attack, although technically homoglyph is the more accurate term for different characters that look alike). For...
concept of the allograph may be compared and contrasted with that of the homoglyph – glyphs of different meaning that are visually similar. For example,...
this approach also has issues, requiring security measures relating to homoglyph attacks. Whether the lowercase letter I is expected to retain its tittle...
halfwidth and fullwidth forms for legacy CJK font compatibility. The Cyrillic homoglyph of the Latin ⟨C⟩ has a separate encoding: U+0421 С CYRILLIC CAPITAL LETTER...
fullwidth forms for legacy CJK font compatibility. The Cyrillic and Greek homoglyphs of the Latin ⟨A⟩ have separate encodings U+0410 А CYRILLIC CAPITAL LETTER...
fullwidth forms for legacy CJK font compatibility. The Cyrillic and Greek homoglyphs of the Latin ⟨B⟩ have separate encodings U+0412 В CYRILLIC CAPITAL LETTER...
do not clearly distinguish a lowercase L from an uppercase i: Il (see homoglyph). The project name is a combination of words illuminare from Latin for...
characters that are rendered as identical glyphs or near-identical glyphs (homoglyphs), either because they are historically cognate (such as Greek Η vs. Latin...
used with faux Cyrillic letters in lieu of their Latin counterparts. Homoglyph IDN homograph attack Foreign branding Heavy metal umlaut for a similar...
Adobe InDesign. One potential source of confusion in Calibri is a visible homoglyph, a pair of easily confused characters: the lowercase letter L and the...
Greece uses a combination of three letters (before only two) that are homoglyphs of Latin letters, i.e. A, B, E, Z, H, I, K, M, N, O, P, T, Y, X in Greek...
Angsana UPC, Kinnari) Look up serif in Wiktionary, the free dictionary. Homoglyph Ming (typeface), a similar style in Asian typefaces The analogs of serifs...
slang interjection used to get someone's attention Uk (Оу оу), a cyrillic homoglyph of Oy Osakeyhtiö, often abbreviated Oy, a type of Finnish limited company...
needed] of this being VeriSign's handling of IDNA names in .com and .net). Homoglyph Unicode Internationalization International Components for Unicode (ICU...
word. For more casual use of leet, the primary strategy is to use quasi-homoglyphs, symbols that closely resemble (to varying degrees) the letters for which...
telecommunications. It thus helps to differentiate characters that would otherwise be homoglyphs. It was commonly used during the punch card era, when programs were typically...
Retrieved 2022-01-17. "VU#999008 - Compilers permit Unicode control and homoglyph characters". www.kb.cert.org. Archived from the original on 2022-01-21...
art scene, Category:Artscene groups Software: AAlib, cowsay Unicode: Homoglyph, Duplicate characters in Unicode Carlson, Wayne E. (2003). "An Historical...
Wandl-Vogt, Eveline (2011). Revised proposal to encode "Teuthonista" phonetic characters in the UCS (PDF). Latin script P Komi De, a homoglyph of this letter...
on Dzělo, the eighth letter of the early Cyrillic alphabet. Although a homoglyph to the Latin letter S, the two letters are not directly related. Both...
including Times New Roman and Frutiger, they found that distinguishing among homoglyphs, and even among some characters that do not appear very similar to fully...
many authors of scientific manuscripts make the minor error of using a homoglyph, sharp s (ß), instead of beta (β), mentions of "IL-1ß" [sic] often become...
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