How good is your password?

There’s a new chart from Hive Systems that you can use to determine how resistant your password is to brute-force cracking.

Password strength chart

Keep in mind that this is a moving target. As processor power increases and new technology arrives, brute-force attacks get faster. So if you have a similar chart published a couple of years ago, it’s likely already out of date. That’s why they included the year at the top of the chart.

It’s easy to use: find the intersection of your password’s length with its character combination.

So, for example, ‘718462’ can be cracked instantly, as can ‘xgts’.

Note that this chart does not show the effect of dictionary attacks, which are typically tried before the brute-force approach. A dictionary attack tries to guess a password based on a list of common passwords.

If your password is in the red or purple areas, you should really think about making it longer and more complex. Longer, more complicated passwords are also more difficult to remember, especially when you use a different password for every site and service (and you really should), but there’s a simple solution to that: use a password database.

I use both Password Corral, which is a free, standalone Windows program, and 1Password, which is not free, but has some useful features.

Given that most of the web-based password managers have been hacked at one time or another, I still recommend using standalone software if possible.

About jrivett

Jeff Rivett has worked with and written about computers since the early 1980s. His first computer was an Apple II+, built by his father and heavily customized. Jeff's writing appeared in Computist Magazine in the 1980s, and he created and sold a game utility (Ultimaker 2, reviewed in the December 1983 Washington Apple Pi Journal) to international markets during the same period. Proceeds from writing, software sales, and contract programming gigs paid his way through university, earning him a Bachelor of Science (Computer Science) degree at UWO. Jeff went on to work as a programmer, sysadmin, and manager in various industries. There's more on the About page, and on the Jeff Rivett Consulting site.

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