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A type
of password
attack that does not attempt to decrypt any information
but simply continue
to try different passwords. For example, a brute-force attack may
have a dictionary of all words and/or a listing of commonly used
passwords. To gain access
to the account
using a brute-force attack, the program
would try all the available words it has to gain access to the
account. Another type of brute-force attack is a program that runs
through all letters
and/or letters and numbers
until it gets a match.
Although a brute-force attack may be able to gain access to an
account eventually, these types of attacks can take several hours,
days, months, and even years to run. The amount of time it takes to
complete these attacks is dependent on how complicated the password
is.
To help prevent brute-force attacks many systems will only
allow a user to make a mistake in entering their username or
password three or four times. If the user exceeds these attempts
the system will either lock them out of the system or prevent
any future attempts for a set amount of time.
- See document CH000300
for information about keeping your passwords more secure and
harder to crack as well as other additional password
information.
Also see: Dictionary
attack, Security
definitions
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