SplashData says that it is incredible that the 3 most common passwords for several years in a row are “password", "123456" and "1234567", which indicates that there is always the same "critical mass" of naive users. Of course, experts say that a good portion of these are used as the profile password for one-time access to some services, fake profiles and people that do not possess the "digital online lives," so it's hard to tell how much damage was really inflicted on the owners of these simple passwords.
You can view a list of the Top 25 most intruded (stupidest) passwords, so if you own and use one, it would be highly recommended that you replace it with something far more complex. This should consist of the "illogical" a combination of letters, numbers and characters and of greater length. You can check how secure you password is at http://howsecureismypassword.net/. Have to say I'm pretty happy with my result (shown in picture above).
[Ed – Although many people will still try to use passwords like this there are a number of things that online services can do. In many cases you can establish a password “blacklist” that prevents new users from using specific passwords like the ones listed above. These same services can also force users to use alphanumeric passwords and even require special characters. There are times when online services simply have to ensure their users’ safety. We would also advise caution in using any online password checking site. There is always the possibility that they are there to collect your password and not to help.]
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