Short and simple passwords can be cracked in a matter of seconds. Long and complicated ones? Trillions of years.
are irreversible, because they're created with one-way algorithms. But hackers can make lists of every possible combination of characters on your keyboard, and then hash those combinations themselves using the most commonly-used software programs. At that point, hackers only have to search for matches of the hashed passwords on their list to determine your original passwords.
It's a complicated process, but one that can easily be pulled off by any knowledgeable hacker with consumer-grade equipment, Hive Systems notes. That's why your best defense is using the sort of long, complicated passwords that take the longest to crack. The report also strongly recommends not recycling passwords for multiple websites. If you do that, and hackers are able to crack your password for one website, then"you're in for a bad time," the company writes.
Understandably, you might not want to remember 18-character passwords each time you log into an online account. After all, a password that takes trillions of years to crack isn't very useful if it also takes you a few million years to remember. But even a password with 11 characters – again, using a mix of numbers, uppercase and lowercase letters, and symbols – could still take hackers 34 years to crack, Hive Systems estimates. And that's certainly better than eight hours or less.
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