Problems with `\itemize` and the svmono document class

Question

I have a strange behavior of the indentation in \itemize environment if I use the Springer's svmono document class. Look the following example:

\begin{itemize}
\item[(E1)]She can access to an arbitrarily large number of ciphertexts, in other words she intercepts all the communications between Alice and Bob.
\item[(E2)]She always knows the encrypting and decrypting functions.
\end{itemize}

The result is:

Why I have this problem?

Edit: I use the following packages

\usepackage{subfiles}
\usepackage[utf8]{inputenc} 
\usepackage[bottom]{footmisc}
\usepackage{microtype}
\usepackage{amsmath}
\usepackage{relsize}
\usepackage{courier}
\usepackage{mathrsfs} 
\usepackage{amssymb} 
\usepackage[all,cmtip]{xy}
\usepackage{faktor}
\usepackage[linesnumbered,commentsnumbered]{algorithm2e}
\usepackage[colorlinks={true},linkcolor={blue},citecolor={blue}]{hyperref}
\usepackage{geometry}

Answer 1

I don't have this problem. Do you use any other commands that could affect the itemizing?

Maybe you can try this:

 \documentclass{svmono}

 \usepackage{enumitem}

 \begin{document}

 \begin{enumerate}[label=(E\arabic*),start=1]
 \item She can access to an arbitrarily large number of ciphertexts, in other words she intercepts all the communications between Alice and Bob.
 \item She always knows the encrypting and decrypting functions.
 \end{enumerate}

 \end{document}