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1 .This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?
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2 .When you think up a password for yet another online account, longer is better, right?
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3 .Well, that's true if your password is a string of random numbers, letters and symbols.
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4 .But if you use a memorable phrase, as some sites recommend, your super-long password could be twice as easy to crack,
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5 .assuming the password cracker knows grammar.
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6 .Researchers created a grammar-smart algorithm and set it loose on 144 passwords, each a phrase at least 16 characters long.
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7 .Two-and-a-half-trillion guesses later, it had cracked a quarter of them.
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8 .And the algorithm decoded a dozen passwords state-of-the-art crackers could not.
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9 .The researchers are presenting their program at the Conference on Data and Application Security and Privacy, or CODASPY.
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10 .The best password crackers can guess 33 billion times a second.
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11 .Using standard grammar cuts down the number of alphanumeric possibilities--and the time it takes to crack your password.
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12 .Avoid pronouns and verbs, the researchers say.
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13 .They're easy to guess because they're few in number, compared to adjectives and nouns.
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14 .For example, "Sheblindedmewithscience" is a weaker password than "threeblindmicerhyme."
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15 .See how the hackers run.
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16 .Thanks for the minute, for Scientific American 60-Second Science. I'm Christopher Intagliata.
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