So here is a site that shows why it’s important to choose good passwords. For those of you who groan when I give you your default password for an account because it’s ‘hard to remember’ note that the reason it’s not something as simple as, oh, your last name, is so that bad people don’t come into our system and mess up your stuff without having to do some work to figure out your shift-character laden, alphanumeric, mnemonically phrased password.
From: http://www.lockdown.co.uk/?pg=combi&s=articles
Examples
These are just a couple of examples to show the resilience of certain types of password, using the information in the tables above you will be able to make your own examples.
Sample Passwords Class of Attack Pwd Combinations Class A Class B Class C Class D Class E Class F darren 308.9 Million 8½ Hours 51½ Mins 5 Mins 30 Secs 3 Secs Instant Land3rz 3.5 Trillion 11 Years 1 Year 41 Days 4 Days 10 Hours 58 Mins B33r&Mug 7.2 Quadrillion 22,875 Years 2,287 Years 229 Years 23 Years 2¼ Years 83½ Days