642 \includegraphics[scale=0.3025]{../pics/startstop.jpg}

   642 \includegraphics[scale=0.3025]{../pics/startstop.jpg}

   643 \end{center}

   643 \end{center}

   644 

   644 

   645 \begin{itemize}

   645 \begin{itemize}

   646 \item Other examples: Wifi, Http-request, TCP-request,

   646 \item Other examples: Wifi, Http-request, TCP-request,

   648 

   648 

   649 \item The point is that we cannot control the network: An attacker

   649 \item The point is that we cannot control the network: An attacker

   650 can install a packet sniffer, inject packets, modify packets,

   650 can install a packet sniffer, inject packets, modify packets,

   651 replay messages\ldots{}fake pretty much everything.

   651 replay messages\ldots{}fake pretty much everything.

   652 \end{itemize}

   652 \end{itemize}