Friday, December 29, 2017

Watching over your privacy inside the Cyber world. Episode 1, Dating Apps

Watching over your privacy inside the Cyber world. Episode 1, Dating Apps

Disclaimer: This post is for educational purposes only and I do not endorse any illegal or unethical activities using the information in this post. Should you get involved in any illegal or even unethical activity then you, alone, are responsible for any legal consequences of your deeds.

I’ve been postponing this post over and over since a few months now, I didn’t want it to be a stalking cookbook but a not-so-late alarm to anyone who value privacy and uses any of the several dating apps out there.
Enough loud thoughts and let’s dive into the subject, as you know there are a lot of dating apps, and a feature of many of them is the “location”.

I’ll demonstrate the issue using the famous Tinder application. When you browse any of the available persons, most of the time you can find a number representing the distance between yourself and that person. Let’s say the distance is 5 miles, you can read “5 miles away” right under the photos section by a couple of lines. I guess many have wondered if they can determine that location by just this info, however the distance info can only determine the location within a diameter of a circle while you are at its middle, and the said distance is its radius.



But we can check that person’s profile from at least three different locations on condition that these three different locations are not on the same line, but forming a triangle so we can have a rough estimate about that person’s location which you can check using google maps. And to get back to the profile on Tinder, when you view the profile for the first time, you should click on "RECOMMEND (Person Name) To A FRIEND", then copy the shown text and paste it somewhere where you can easily access it later to open it again, in case you are not matched.




Now I bet some of you are wondering if there is an option in google maps to draw a circle with certain radius, unfortunately google does not provide such feature.
However, and luckily for us demonstrating this issue, Oliver Beattie has made a spectacular work creating this add-on layer here: http://obeattie.github.io/gmaps-radius/?
After you determine the distance from the Tinder profile three times like mentioned in the previous step, you can obeattie's link and start forming three circles with the read radii
Where we can use it to roughly determine the location on the map and then continue checking the person’s profile from many various points to determine the near exact location, hopefully.


You can always attain more information about that person using normal reconnaissance techniques including the written information inside the profile, and maybe some social engineering.


So that was just a thought about exploiting privacy via Tinder or other dating applications.

Your comments are welcome.

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