Hi r/photography,

I am upgrading my backup system after a drive failure.

About 2To of data, photography mostly and personal files. Hobbyist.

Up to now, I had two hard drives at home: one working drive synced to Onedrive, the other offline used as a backup.

My working drive failed. I am replacing it by a 4to ssd.

I would like to replace the backup drive by a simple NAS, 4to, and to put it offsite at my parents’ place. Thinking of the Synology DS120j.

My question is how to secure a NAS backup against infection?

Let’s say my system gets infected and the infection is passed to my Onedrive, how can I prevent this infection to reach the NAS? Is a solution to delay the backup, like with a weekly interval? Does not seem fail proof to me.

Thanks in advance