Attcking a secure network

Please develop a scenario where you are a hacker.  How would you attack a Secure Network?  What tools and methods you would apply and why.  This initial statement should be based in research and be at least 1000 words of significant writing.  Remember, I remove all superfluous words prior to reviewing word-count.

Then, respond to at least one of your classmates scenarios with at least 300 significant words of critic.  I have the same criteria for your statements. 

APA format must be followed for all submissions.