Any not annoying help welcome

[ICSS Security <ctrlaltdelete () outlook pt>]

Making a turn here, let's see what turns out!
I know that using Wireshark we can capture traffic in/out of the routers interfaces.I don't want to dig up the routers 
concept because face it i already know how it works and so do you.
I have only a few questions to ask.
1) The traffic on any device is monitored, correct? So, android devices too.2) I have monitor an apk aplication and 
saved the packets with a succefull login and an unsuccefull login.3) I know what the magic number to look for but, i'm 
unable to go further decoding the authentification method.
Can anyone give me a hand here or should i go elsewere?

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