U+0441 "с" Cyrillic Small Letter Es Unicode Character

U+0441 "с" Cyrillic Small Letter Es is a lowercase letter used in the Cyrillic script, representing the voiceless alveolar fricative sound /s/, similar to the English letter "s". It is derived from the Greek letter sigma (Σ) and is found in many languages that use Cyrillic, including Russian, Ukrainian, Bulgarian, and Serbian. Visually, it often appears identical to the Latin lowercase letter "c" in many common fonts, which can lead to homoglyph confusion and potential security risks in digital text. As part of the Cyrillic block in Unicode, it occupies the code point U+0441 and is distinct from its uppercase counterpart, "С" (U+0421).