A review of 19 billion passwords reveals people are still bad at them

May 2 2025 by Mashable

 

Your password probably stinks. At least that's what a new study shows.

Researchers at Cybernews studied more than 19 billion leaked passwords, and of those just 6 percent were identified as unique, meaning they weren't re-used or duplicated. To make matters worse, the most common passwords are way too simple. Four percent of all passwords studied by Cybernews — meaning roughly 727 million total passwords — included the phrase "1234." Phrases like "password" and "admin" were also quite...

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