This plugin is outdated and might not be supported anymore
Invisible

Invisible

Details
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This plugin moving attachment file to other protected directory.

/wp-content/uploads/path/to/file -> `/wp-content/uploads/protect/path/to/file` 

But, attachment file url is not changed. WordPress will return the attachment file content, check the access permission.

Details

Plugin code:
invisible
Plugin version:
0.1
Outdated:
Yes
WP version:
3.8.1 or higher
PHP version:
or higher
Test up to WP version:
3.7.41
Total installations:
0
Last updated:
2014-02-03
Rating:
Times rated:
0
attachment
private-post