I think it's better to know how this works, so you can protect yourself.
Mobile platforms like iOS and Android allow developers to collect people’s contact lists with permission. Twitter has a login feature similar to Facebook Login, and so do Google and LinkedIn.
If you see a pop up that says 'This app wants to access your contact list' then think twice before you say yes, if you are worried about people collecting data.
Conflicting high cholesterol and triglycerides advice
Cross partyAsylum seekers in UK should have right to work after six months!