Show HN: Unicode Steganography (steganography.patrickvuscan.com)

The post demonstrates two forms of Unicode steganography that hide messages in plain text—using zero-width characters or homoglyph substitutions—then compares their detectability, capacity, and robustness. It argues that while current scanners and platform filters can catch some methods, a sufficiently capable AI could potentially generate encodings that evade human review and automated checks, raising practical concerns for LLM safety.