alt Hacker NewsIf you can’t trust modification time you are doing something so unusual that you probably need to be handling your backups privately anyway.
If you can’t trust modification time you are doing something so unusual that you probably need to be handling your backups privately anyway.
I don't think so.
Sometimes modification time of a file which is not downloaded on computer A, but modified by computer B is not reflected immediately to computer A.
Henceforth, backup software running on computer A will think that the file has not been modified. This is a known problem in file synchronization. Also, some applications modifying the files revert or protect the mtime of the file for reasons. They are rare, but they're there.