Is it possible to collect a database of users "whatsapp"?

Good day.

Yesterday gave up and put the app "whatsapp" for Android, I think talking about the app makes no sense. After installation suggested me to register default to putting my name from Google account, if not mistaken. After registration, I saw most of their contacts in the most amazing and unknown numbers recorded under different names (Bank / neighbor / buy the video card, etc.) also were in the contacts app, but under their own names and the most amazing thing with their pictures. Adding contacts, unknown with my camera, accommodation colleagues also received the names and photos!

Obtained using the application to raise the database of subscribers for future black deeds?
Spam, search my room for name and surname. I'm not saying that hiding this information. More worried about the sisters and friends of girls who are already tired to change phone numbers from all the inadequate people.

The question still remains open whether or not to raise database "whatsapp"? Still, I would like to get notifications and to allow(disallow) add to contacts another person as a user of any social network, and so the notebook can add my room and record whatever he wants.

Vacation is still far away and no time to check it all. Maybe someone has already tried? There are online some results? You can link? Google didn't give. Or maybe someone is boring and it will be interesting to dig and to learn how it works "whatsapp"?

Understand it is possible for their server to send on-line a set of mobile numbers in some ranges (8 000 000 00 00 — 8 999 999 99 99) and so on and collect on a time base? Plus maybe update it.

Thanks in advance.

ps. did not add as article, I still just interested in this topic as a question.
October 3rd 19 at 03:02
3 answers
October 3rd 19 at 03:04
Unfortunately, it's possible. WhatsApp does not use encryption, and tamper with the requests on a standard computer simply. This probably already someone is engaged, I'm sure.
October 3rd 19 at 03:06
Whatsapp associates a telephone number, then account is created. Accordingly, if you saved the phone number under the name "Nikolai Petrovich Accounting," and actually it is "Anna the third", in Whatsapp you will see her public profile tied to a room — there will be a profile picture and a name that people chose. Assemble the base this way is very difficult, if not impossible.
Why should I, you or my sister to write "Nikolai Petrovich Accounting"? She will write your name and surname (by default it says).
Now Peter clever, collects a database of whatsapp and makes the site.
Poor Sasha brings in "Alain Chudesnoe" and gets her number(s).

It turns out all the same information very public, once someone has access? For example, an agent there is also a mobile number. But it only appears if I added this person in contact. Even know who knows about me and I allowed it. - ruben.Bosco commented on October 3rd 19 at 03:09
How to collect a database of Whatsapp? This will at least add all the phones from which you want to contacts in the phone book. Given the fact that not all of these rooms will use whatsapp, it is cheaper, easier and faster is to buy the base operator. - Zachary_Feest commented on October 3rd 19 at 03:12
How to collect a database of Whatsapp? This will at least add all the phones from which you want to contacts in the phone book. Given the fact that not all of these rooms will use whatsapp, it is cheaper, easier and faster is to buy the base operator.

The application makes requests to the server, you can just replace her with the usual machines, collecting responses, you can collect some base data. - ruben.Bosco commented on October 3rd 19 at 03:15
Arik, I am sure that whatsapp does not allow to do so. - Zachary_Feest commented on October 3rd 19 at 03:18
tmikwid, why not allow? Except that the limits per user are, but they can be circumvented by registration of multiple accounts and stretching the dump on time. The idea is good. - jermain.Kerlu commented on October 3rd 19 at 03:21
> Bad Sasha brings in "Alain Chudesnoe" and gets her number(s).

And? What benefit can accrue, by having a number and a name/surname? - marcus.Champlin53 commented on October 3rd 19 at 03:24
And? What benefit can accrue, by having a number and a name/surname?

Phone number: "Selena Gomez", "Angelina Jolie", "Dima Bilan". "Vladimir Putin" (don't know), well, certainly "Dmitry Medvedev". no?

Many stars, politicians also use the social network.

Even ordinary people do not give everyone your phone number.

It's not about profit, a matter of private life. I think - ruben.Bosco commented on October 3rd 19 at 03:27
"Dmitry Medvedev" will not work. Two names: first — as the person called himself ("Dimon"), the second — as it was called by another in his book. The second is not seen in any other "second". So Dimon will remain Dimon of million of the same. - Nayeli.Hammes commented on October 3rd 19 at 03:30
October 3rd 19 at 03:08
By the way, recently updated Google Talk=>Google Hangouts approached the reference numbers seem to be more correct from the point of view of security, there is need to further requests to send to the permission of communication.

Find more questions by tags DatabasesWhatsAppInformation security