World-Readable
From Support
A world-readable file or directory is one that anyone can read. For directories this means (assuming it's also world-executable) that anyone can list the files contained inside it. Passwords and other sensitive data should never be in world-readable files.
> ls -l
-rw-r--r-- 1 bbrazil bbrazil 0 Dec 25 20:08 file
^ this r indicates that 'file' is world-readable
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