In WhatsApp and all, the group admin simply add you (the number) without any notice. 

In socialmedia, there are lots of data..... 

In the name of ALLAH

Hi,That's right. Thanks MR Mohamed Parvees

Then first challenge is create user without report.

Apart from spoofing, the greatest danger in social networks is social engineering, i.e. the seek and extraction of confidental data.

In the name of ALLAH

Hi,that's great.Thanks Mr Fahrnberger.

Then second challenge is spoofing.

Thanks 

SJVJS

In the name of ALLAH

Hi,this paper help to you that guide me for receive and complete it.

Thanks for your co-ownership.

Thanks

SJVJS

Salaam,

In social Network we've got many challenges; like you have stated fake authentication- So far, we have Fake user accounts upon which administrators don't have any control(can be solved by tracking IP address for single registration only)

Secondly we have what we call social engineering - In fact, people collect our confidential information like D.O.B, Full Name, Location etc. 

Thirdly, for example when we see Facebook - Anyone can add you to any open group which is not appropriate.

Also, in the monetization process whereby users just use the system without even being aware of how the company is making money by using him - Facebook uses chat bot for businesses in messenger .. and yet to come for whatsapp

Lastly, the most important factor - Wherever social Network is indulged, hacking is inevitable. Hacking in every way like phishing - spoofing - S.E - CRSF  etc. 

Thanks. 

Regards,

Zuhayr

In the name of ALLAH

Hi,that's great but authentication in social network is very very hard that voice and location can help it.

Many thanks to your expert opinion

3th fake profile

Thanks 

SJVJS

Authentication using certificate at registration phase may be helpful

In the name of ALLAH

Hi, that's correct but for next authentication need to user and password.

this user and pass aren't secure.

user and password may be broke with some attack( dictionary and ...)

we need better than idea.

Thanks

SJVJS

In the name of ALLAH

Hi,excellent MR.Zuhayr M. Korumtollee

Spoofing & fishing are 4th and 5th.

you are clever science.

thanks

SJVJS

In the name of ALLAH

Hi Dear Dr Jasmin Ćosić. That's great. trust information is important.

I have a idea for it but want to receive challenge social network in real life then solve them and publish it with best idea.

Thanks

SJVJS