Files are usually created writeable. But some files, for example: media files (*.mp3, *.ogg), disk images (*.iso) or simply old archived documents, are unlikely to be modified anymore.
Do you remove write permissions on these files to prevent accidental modification, deletion** or otherwise (god forbid) virus infection?
**Yes, I'm aware that file deletion is a directory property, not a file property; at least on *NIX systems, I don't know about Windows.
I've started doing this on some aspects of my files, for instance, my backup partitions (on different physical disks) are always mounted read-only. The backup script remounts it read-write, does its thing, then remounts it read-only again. My archived documents also have their write and delete permissions revoked.
Care to share your experiences?
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