Do you still believe in your safety in the high-tech information age?

A computer can guess more than 100,000 passwords each time.

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Passwords have been used for thousands of years, which means self-control of other people and, in the most recent moment, the computer system. This is a simple and straightforward concept-share a piece of information, maintain magic formulas between people, and get used to "proving" identity.

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Passwords in the IT context appeared with mainframes in the 1960s-large, centralized personal computers with remote "terminals" for the convenience of consumers. Now, through the password we entered on the ATM, to log in to our personal computers and many Internet sites, they have been used for everything.

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But why do we need to "prove" our identity on the unit we obtained? Why is the password so difficult to be correct?

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