alt Hacker NewsDoes this actually embed the data using stenography, or does it just append it (encrypted) to an area of the file that the carrier format doesn't care about? The advantage of stenography is that it should be difficult for a middleman to know that there even is any data embedded.
You can save the resulting carrier file and open it any default file viewer of your OS. including ios, macos, windows etc.
Regarding being detected, like anything else in security it is always a cat and mouse game.