ID4me is an internet service that enables its users to log in to many different internet services with one account. This is also known as "single sign on".
Unlike existing global single sign on solutions like the ones from Google or Facebook, ID4me does not track and analyze the internet surfing habits of its users. ID4me will make sure that the surfing habits stay secret.
Also, ID4me does not belong to an enterprise. It is an open standard that is maintained by a nonprofit organization. Anyone who wants to can participate. This way the users can chose freely between different ID4me providers and can also change the provider anytime.
The front and back sides of the Xperia Z are made of scratch-resistant mineral glass and to further protect the device, Sony installed a glass covering film onto both the front and back sides of the Xperia Z. This extra protection is hardly noticeable. The Sony Xperia Z is also IP 55/57 certified. This means that it is dust-resistant as well as being resilient against being sprayed by water and temporary submersion. As a direct consequence, all of the ports and jacks are hidden behind protective flaps.