1000 most common passwords password#

(If you've done similar common password research, please do share your results in the comments.) I saw this originally when I gathered millions and millions of leaked passwords for Discourse research, then filtered the list down to just those passwords reflecting our new minimum requirement of 10 characters or more. Note that only 5 of the top 25 passwords are 10 characters, so if we require 10 character passwords, we've already reduced our exposure to the most common passwords by 80%. If you examine the data, this also turns into an argument in favor of password length. (One interesting idea is to search for common shorter password matches inside longer passwords, but I think this would cause too many false positives.) So this list has to be customizable, localizable. The numbers are the same in any culture I suppose, but I find it hard to believe the average Chinese person will ever choose the passwords 'password', 'quertyuiop', or 'mynoob'. If you look at 10 million passwords from data breaches in 2016, you'll find the top 25 most used passwords are: 123456Įven this data betrays some ASCII-centrism. I also advocated checking passwords against the 100,000 most common passwords. And if you happen to be an admin or moderator, we decided the minimum has to be even more, 15 characters. Since I wrote that, we've already increased our minimum password default length from 8 to 10 characters. The primary password rule we used was also the simplest one: length. … is a spectacular failure of imagination in a world of Unicode and Emoji.Īs we built Discourse, I discovered that the login dialog was a remarkably complex piece of software, despite its surface simplicity. But expressing your love of entropy as terrible, idiosyncratic password rules … über-geek, know all about the concept of entropy.

1000 most common passwords software#

They consistently ruin every piece of software I've ever written.

Of course not, because have you met any users lately? Particularly if we stop thinking like Ugly ASCII Americans.Īnd what of those nice, long passwords? Are they always secure? aaaaaaaaaaaaaaaaaaa You may also be surprised, if you paste the above four Unicode emojis into your favorite login dialog (go ahead – try it), to discover that it … isn't in fact four characters.Īs it turns out, even the simple rule that 'your password must be of reasonable length' … ain't necessarily so. Or this (hypothetical, but all too real) seven character password? ش导พิ한 I'm sorry but your password must contain 1 char each from: Arabic, Chinese, Thai, Korean, Klingon, Wingdings and an emoji- Finley Creative March 3, 2016 What about this eight character password? 正确马电池订书钉 What about this four character password? ✅🐎🔋🖇️ A long password is much more likely to be secure than a short one … right? So then perhaps we have one rule, that passwords must not be short. These days, given the state of cloud computing and GPU password hash cracking, any password of 8 characters or less is perilously close to no password at all. I'll go so far as to say your password is too damn short.

We can certainly debate whether 'correct horse battery staple' is a viable password strategy or not, but the argument here is mostly that length matters. Have you seen the classic XKCD about passwords? The more likely you are to use a truly random password generation tool, like us über-geeks are supposed to, the more likely you have suffered mightily – and daily – under this regime. The world is absolutely awash in terrible password rules:īut I don't need to tell you this. I don't know if there's an afterlife, but I'll be finding out soon enough, and I plan to go out mad as hell. Let this pledge be duly noted on the permanent record of the Internet. If we don't solve the password problem for users in my lifetime I am gonna haunt you from beyond the grave as a ghost /Tf9EnwgoZv- Jeff Atwood August 11, 2015 Of the many, many, many bad things about passwords, you know what the worst is? Password rules.