Its bad practice to provide world-writable access to critical files in Linux, though weve seen time and time again that this is done to conveniently share files with other users, applications, or services. But with Xtrabackup, preparing backups could go wrong if the backup configuration has world-writable file permissions. Say you performed a backup on [&]

https://www.percona.com/blog/2019/07/01/setting-world-writable-file-permissions-prior-to-preparing-the-backup-can-break-it/