No one expects to have their password
jacked. That's why most people choose lousy ones to begin with. Below
are the secrets to creating an impenetrable passcode for all your
digital goodies:
Step 1: Avoid the Familiar
For starters, scratch the first cutesy, memorable password that comes
to mind. As technology advances, so do the tools for password cracking
-- so you're going to have to pull out the big guns. Avoid any word that
can be found in a dictionary. Other no-nos include using personal info
(names, birthdays, etc.), or anything derived from a pattern. The more
random your starting point, the better.
Step 2: Use Every Type of Character Available
Now that you're thinking outside the box, it's time to add
complexity. Each addition of multiple character types (i.e., upper
case/lower case letters, numbers, symbols) complicates any sort of
would-be pattern. So, you'll want to use as many as possible. A good way
to start is by taking a random string of letters, and then replacing
some of the characters with numbers ("1" for "l" and so on). After
you've got a decent letter/number mix going, go back and sporadically
add symbols. If the end result looks like gibberish then you're on the
right track.
Step 3: Go For Length
Committing 40 random characters to memory can be a daunting task. On
the flip side, a five character password is a security nightmare waiting
to happen. Ideally, you'll want to find a middle ground when it comes
to length. A password that you can't remember is useless, but try to
stretch your mnemonic boundaries. Taking the time to add a few extra
characters outside your comfort zone can increase the number of
possibilities exponentially.
Step 4: Rotate Regularly
Don't get too comfortable with your new creation.
It'll only be a matter of time before it needs changing. Even though
you've created the ideal 'unguessable' password, there's the still a
chance that the information can be gleaned through a keylogging program
or social engineering. The best way to combat this is to keep your
password changing. Choosing a set 'rotation day' every month should
throw any would-be snoops off the scent.
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