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One Character Passwords in Yahoo Hack

The login information for 450,000 Yahoo users was posted online today. The anonymous hackers posted that they were posting the info as a warning:

“We hope that the parties responsible for managing the security of this subdomain will take this as a wake-up call, and not as a threat.”

Yahoo Hacked

What I find really interesting is the statistics of the data that was posted. Full breakdown available at: http://pastebin.com/2D6bHGTa

The stats show that out of the 450K logins, 117 of them were using one character passwords. I didn’t even think that was possible! How old are those logins that Yahoo would allow someone to create a login with a one character password? May be they were old test accounts? Weird.

If you run any one character password through HOW SECURE IS MY PASSWORD? it says the password would be cracked by a desktop PC – Instantly. I like to use passwords that say it would take About 1 trillion years.

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