On the new iPhone 5S，there's a fingerprint scanner as an optional precaution (预防措施) for those who want to use it.When my dad got the 5S，the first thing I did when he wasn't looking was put my fingerprint into his phone.The added security technology gave my dad a false sense of security.That was shattered (粉碎) when I picked up my dad's phone，and he said “Your fingerprint won't work，only mine” with a smug look on his face，which quickly

　　disappeared

　　when

　　his

　　phone

　　“magically” opened for me.I could tell that he felt as though the privacy of his phone was violated.I let him worry for about five minutes，and then I showed him how I put my fingerprint

　　into

　　his

　　phone

　　when

　　he

　　wasn't looking.What it proved to me is that people are so worried about privacy that a phone could sell for

　　$100 more just for better security.

　　Let's go back to my original issue.I feel so protective of the information on my phone because we live in a world where we're constantly connected，and anyone can learn whatever he or she wants about us in just a minute.I didn't believe my brother when he said “Welcome to the world of never being not connected” to me when I got my first phone，but that is exactly the world we live in today.

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