Centre Network and Security News

Category: Passwords

Choosing good passwords!

Long passwords are strong passwords!  

Your password can be:

  • passphrase(password phrase or sentence), or
  • A complex combination of characters.

Passphrase:   The easiest way to create a secure password is to use a passphrase, a password consisting of a sentence or phrase.   Passphrases may be easier to remember and more secure than a shorter, more complex password.   A passphrase must:

  • Be between 15 and 127 characters in length, consisting of letters and spaces, AND
  • Contain at least 1 number OR 1 symbol, such as   ( !”# $%&'()*+,-./:;<=>?@[]^_`{|}~).
  • Passphrase tips:
    • Consider a passphrase of several (5 or more) random words strung together, e.g. strainer walking trusty comic giraffe.
    • Make up a sentence that is relevant to you but is stated in such a way that it is not easily guessable, e.g., jazz is a passion, pizza too.
    • Remember that incorrect grammar and misspellings are passphrase strengtheners.
    • DON’T use quotations, popular song lyrics or well-known lines from books, movies, plays, TV shows, etc. exactly as published.   Individuals attempting to crack your password will try them.   You can base your passphrase on one of these, but vary the text in a unique way, e.g.,   “ not all those who wander are lost” (J.R.R Tolkein) could be modernized to “not all those who wander lost their GPS” (we’re sure you can do better).
    • DON’T use something that is public knowledge or has been shared on social media, such as Facebook or Twitter.
    • DON’T use any sample passphrases or passwords shared as tips.

Complex Password:   If you choose to set a shorter but complex password (less than 15 characters in length), your password must contain ALL of the following:

  • A minimum of 10 characters,
  • 1 uppercase letter,
  • 1 lowercase letter,
  • 1 number, AND
  • 1 symbol, such as    ( !”# $%&'()*+,-./:;<=>?@[]^_`{|}~)
  • Complex password tips:
    • Base your password on things relevant to you, but not easily discoverable.
    • Consider using incomplete words, uncommonly misspelled words or number or letter substitutions.
    • Create a unique password for your university account.
    • DON’T use the kinds of passwords that are easy hacking targets, such as:
      • Common dictionary words.
      • Sequential letters or numbers (e.g.   1234567890, abcdefghij, qwertyuiop).
      • Trivial passwords (e.g. password, passwd,mypassword,p@ssw0rd).
      • Easily discoverable personal data (e.g., Account name, Centre ID, names, birthday, address, pets).
      • Things that you’ve posted on social media sites (e.g. Facebook, Twitter).
    • DON’T ever leave a password blank or keep its default value intact.
    • DON’T use the same password to secure your university account as you use (or have used) for other sites, e.g., online shopping, Facebook.
    • DON’T reuse passwords.

Be creative!   The best passphrases and passwords are ones that have never been used before. 

Finally, remember: ITS will never ask you to disclose your password!

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