Millions of people across the world own, enjoy and increasingly rely on their iPhones.

But do the popular devices have more sinister elements?

Two researchers have found that the phones are tracking every move of their owners.

Their claim comes on the same day Apple announced record sales, which might be great news for the CEO and the shareholders, but what do they mean for consumer privacy?

Al Jazeera's Imran Khan finds out.

Source: Al Jazeera