Here is a quick tutorial on how to hijack account. NOTE THAT IT'S FOR EDUCATIONAL PURPOSES AND IILLEGAL
What this requires
Your android phone must be rooted/unlocked.
You must be on the same network as the person you want to hack into.
The person must be currently using Facebook on the computer
Note*: It won’t work if the person is using https security option in Facebook.
Step By Step tutorial
1. Once you have unlocked/rooted phone, you need to download the .apk file from here
Moderator edit: link removed as we do not do illegal stuff here
. It’s free for the first three accounts you get into.*Note*: If you want to get the unlocked version of the app then you'll have to pay to Unlock it, or you can google search for cracked version.
2. Once the app is downloaded, install it and then connect the Wi-Fi of your victim.
3. Open the app and press the start button on the top. If it ask you to allow permission for the app, do so.
4. It will now be monitoring activity. Anyone who uses Facebook/ YouTube/twitter/amazon on the network you are connected *to will show up on your phone. Simply click on them and you will be logged in into their account. Note : It might take 2-3 minutes to load up the screen. So have patience.
5. If nothing is showing up, try using stealth method in app. Some rooters prevent these kinds of hacks; stealth method will attempt to bypass this.
That's All! Enjoy!
Sent from my Nexus 7 using XDA Premium 4 mobile app