How to Set WordPress File Permissions
Source: YouTube(Astra Security)
Disable Directory Listing
Source: YouTube(Astra Security)
WordPress Server File Permissions
Source: YouTube(WordPress Tutorials - WPLearningLab)
How to Disable Directory Browsing in WordPress
let's put that code into your .htaccess file.
# BEGIN Directory Browsing Block
Options -Indexes
# END
Directory Browsing Block
Source: YouTube(WordPress Tutorials - WPLearningLab)