Hi. I want to know how Microsoft and Skype creates a backdoor through Internet telephone app allowing an interception than can be very useful to everyone? I need your ideas guys.
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Actually this seems to be a rather un ethical thing that you are trying to ask.
The background work is always hidden from a normal user so the people cannot mess with the source code and do some harmful things like tracking down different calls or stuff like that.
But if you still want to have such information then you have to google it yourself as it is not very easy to find because very less people do research on such things and even if they do, they do not disclose it for free. You have to pay them to have their services.
But the basics remains the same, all the protocols and the ports that are used to send and receive calls are the same.
