FontCode New Technique Can Hide Secret Messages Inside Font

Hellvetica: Encrypt one novel within another!
https://blog.securityleaks.org.in/fontcode-new-technique-can-hide-secret-messages-inside-font/
For now, the system is still under development, but researchers plan to release tools for embedding hidden messages in font glyphs, and a mobile app to scan text, look for perturbations, and decode the hidden text.