Ad networks know you through your mobile device

[SINGAPORE] Even if you're careful not to subscribe to spam or divulge your personal data to social networks, your phone carries a wealth of data about you that advertisers can use.

Simply by your carrying a mobile device, today's sophisticated ad networks can figure out your occupation, your lifestyle habits and whether you're affluent, even.

One fast-growing Singapore-based mobile ad network Adnear has a trove of smarts on millions of mobile users.