Firstly, I would like to make an appeal to you to STOP sharing your personal credentials like passwords, financial details, etc with anyone be it to your closest friend. In saying this, I am not creating a question mark on your friendship etc, but I had recently found this habit esp. girls. In reply, their answers were like..."I do not have something secretive in my inbox, hence I feel nothing wrong in sharing my passwords...after all we trust each other so much". I really appreciate your friendship but if some day accidentally something happens to your profile or anything the first target will the same friend..which in turn can affect your so-close friendship as well. Hence, for no other reason, I urge you that some things are to be kept very-personal as well. In case you still have any doubts let me know..by either means and I can elaborate more instances to make you understand the reasons behind this.
Next thing I need to talk about is facebook security. This is really very important to understand for each person esp. girls again, who has a facebook account. To start up with, I request you to ONLY use secured version to login into facebook Click here. This is a secured page by facebook to login into. It uses 'https' protocol that stands for Secured Hypertext Transfer Protocol and do you know facebook is paying for this to allow their readers to have a safe login.
Then in facebook, I wish to describe the major portion for which nearly each one us knows facebook i.e. facebook applications. I don't need to describe I suppose what are these and straight coming down to the theme. When you click to say, 'Try this application' or something similar, you are directed to a dialog box as,
Take some time reading this out, it says...'The person who made this application can access your private details. He can post 'anything' on my wall and also access posts in my NewsFeed. The moment you allow this 'Token', these rights by default goes to him for Lifetime until you revoke the rights. Is this what you wanted...?????
Now, the question arises than what is the solution. You need to use facebook applications and you need to click on Allow to do so. Yes, we have a solution. Just read the last line in the previous paragraph once again....Okay then, by default you are allowing the token for lifetime, now if you come to know how to revoke the token, then the developer can no longer access your details. So it that sounding good...
Here's what you need to do to revoke the privileges,
1) In right-hand top-most corner, click on Account-> Privacy Settings
2) See 'Apps and Websites' in the lower-left corner is written, click on 'Edit your settings'
3) In the above screenshot, as you can see the application I have authorized - one of which is'My Best Status 2010'. Similarly in your facebook settings you will see the whole list of applications that can access your profile-information.
Now, the task is pretty clear, I need to revoke the privileges of 'My Best Status 2010' application. Here's what you need to do,
Clicking on the yellow-highlighted edit button will take you to something similar to,
4) Finally, everything is before your eyes, CONTROL the privileges of the desired application accordingly.
This was just Application Privacy that I depicted. Similarly, go through the screenshot after Step 1 and CHANGE all the privacy settings either to your friends or to you only.
Remember, the more you explore, the better you learn. So, this is just a basic guide, try getting aware of how you can control EACH and EVERY information (esp. your photographs) you publishes in your profile. It is very very important before you make use of technology, it is better to understand the basic risks behind it. In case you still find difficulty, consult either me or some security expert but do not avoid this at any cost.
Before ending this, I would like to sincerely acknowledge the efforts of Rakshit Tandon Sir, who is a Security Expert in this field and is making his best to spread awareness on cyber-security issues by taking out his time to give presentation in various schools and colleges. Getting motivated by these thoughts, this is a small step towards helping him out in spreading the awareness.
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