This August, we published the first version of a pattern-based taxonomy of hiding methods for steganography, which also incorporates network steganography but additionally covers other domains of steganography, such as digital media or text steganography. The paper was presented during the CUING workshop at the ARES conference (video of the talk). It essentially shows a first (but major) step towards such a taxonomy. We currently work on the extension/finalization of the initial steganography pattterns taxonomy, which will be published in a few months. This extension will also try to better describe the co-existence of both taxonomies while ensuring that they are synchronized. The paper is a joint work by eleven authors from seven institutions (four countries).
Paper: Caviglione L, Mazurczyk W, Mileva A, Dittmann J, Krätzer C, Lamshöft K, Vielhauer C, Hartmann L, Keller J, Neubert T (2021) A Revised Taxonomy of Steganography Embedding Patterns. In: Proc. 16th International Conference on Availability, Reliability and Security (ARES 2021). ACM, DOI: 10.1145/3465481.3470069
There is a website for steganography hiding patterns: patterns.ztt.hs-worms.de/
More updates on the subject will follow in the coming months.