The developer behind an app sells your UDID to an advertising network, which stores it on its servers. The more devs sell your UDID to that same ad network, the more that ad network knows about you, and the better it can serve you ads on that specific device. These ad networks can then sell their databases to other ad companies, who can put together a pretty complete picture using their combined UDID databases of what you use that iPhone for.

In other words, UDID is like a social security number. We give our social security number to companies all the time. In isolation, a company having your social security number is not necessarily a bad thing. But the problem with a social security number is that if it is leaked out into the world for whatever reason, people we don’t mean to have it can use it to dig up your medical records, credit card number, home street address and more.

Zašto ne bi koristio mobitel za pristup bankarskim uslugama? Pitanje je - zašto koristiš TAJ ISTI mobitel za pristup raznim mutnim sadržajima?