NEW YORK (CBSNewYork) -- For most people a phone is more than just a phone; it holds passwords, bank accounts, and more. But what would happen if that phone was lost or stolen? Could you possibly remember all of that personal and private information?
It's a growing problem that many people may not be aware of until it's too late -- most people have not memorized the contents of their cellphones.
"How many times do you take out your phone and use the dial, the key pad, almost never, you go to your contact list, you hit a name, that's it," explained Mashable.com technology expert Lance Ulanoff.
That lack of knowledge has turned into trouble for more and more people. If a phone is lost or stolen you could lose more than phone numbers.
"Phones are kind of the wallet of the 21st century," Ulanoff said. "They have all that important information."
You can protect yourself, experts explained. The cost to backup the data on your phone is minimal and there are apps that can help track your phone if it goes missing.
But, your best line of defense may be an old fashioned address book.
"Maybe a little black book with the 10 key phone numbers is not a bad idea," Ulanoff said.
A recent study found that 1 in 4 people cannot recall their own phone number without looking at their phones.
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