If you have completed PICT2001 then this unit will be a breeze as it is very similar. If you haven't, don't stress because the unit is still very easy to attain good marks in simply by watching the lecture each week and applying your knowledge in the assessment tasks to the relevant unit concepts and readings. Overall, it's a good and interesting unit but it can be a bit boring for the cyber security students because the topics that get covered are things that everyone already knows.