How many passwords can you create if the password must consist of 2 letters followed by 4 digits with no repeats allowed?
The College of Arts and Sciences technology support services at Western Michigan University offers the following tips to choose a good password. Since very few systems have support for one-time tokens (dynamic passwords which are only used once), everyone should be aware of how to select strong passwords. If a malicious user can get hold of or 'crack' your password they
can access the system with your identity and with your access rights. Passwords should contain three of the four character types: Examples: Substitute codes or words into other words (insert numbers between the letters of the original word). Examples include (original word - pattern/code/word to insert password):
Create a password from phrases with character substitution. Phrases can be statements, locations, lines from books, movies, etc. Examples:
Protecting your passwordDo not use the same password for Western Michigan University accounts as for non-Western Michigan University accounts (i.e., personal ISP accounts, brokerage accounts, benefit accounts). If one account password is compromised, all accounts may be compromised. Do not share your University password(s) with anyone, including administrative assistants, supervisors, secretaries or co-workers. All passwords are to be treated as sensitive, confidential Western Michigan University information. To better protect your passwords, don't:
If you suspect your account or password has been compromised, report the event to the appropriate system administrator and the University information security administrator and change your password immediately. If someone demands your password, refer him or her to your system administrator or the University security administrator in Office of Information Technology. How many passwords are possible with 4 digits?There are 10,000 possible combinations that the digits 0-9 can be arranged into to form a four-digit code.
How many passwords are possible with 2 digits and 2 letters?A password consists of 2 letters followed by 2 digits. The number of different passwords (2 letters followed by 2 digits) that can be formed is 67600.
How many different passwords can be formed using 3 capital letters followed by 4 digits?Each of the three letter combinations can be combined with any of the three number combinations so the total is 17,576 x 1000 = 17,576,000 different combinations possible.
How many passwords are possible?If only letters are used (no numbers or punctuation), then there can only be 267 (roughly eight billion) password combinations.
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