\begin{abstract}
-\begin{color}{red}TODO\end{color}
+Steganographic Information Hiding (IH) schemes
+are in competition with Artificial Intelligence based
+Steganalysers.
+However, such kind of latter approaches suffer for dealing with
+unpredictable behaviors.
+The open problem is how defective they can be
+proven against IH schemes based on mathematical chaos,
+since this framework is theoretically and practically unpredictable.
+This article addresses this problem and presents a review of IH schemes
+based on Devaney's mathematical chaos.
\end{abstract}
\input{IH/intro}
