Yes, of course. This is one of the reasons why I have 3 copies of everything I use (local/computer, cloud, NAS). This is particularly why I have a cloud backup, with blockchain data authentication.

But, this is a basic overview of how to prevent NAS ransomware attacks: https://www.howtogeek.com/435452/how-to-secure-your-synology...

There is better advice elsewhere but this is a good start.

This may be a good comment to look at: https://news.ycombinator.com/item?id=25618346

This may be another good comment to take a look at: https://news.ycombinator.com/item?id=24860863

Can you elaborate some more on your cloud backup solution? More specifically, I'm curious about the privacy/security aspect. It's the main reason why I've been somewhat hesitant to adopt cloud backups for my own computers. \

I encrypt all of my information before I back it up. It is a risk that I am willing to take. Governments can always decrypt my information. Bruce Schneier, a world-renowned security expert who wrote "Click Here to Kill Everybody", states that he does not recommend storing information in foreign servers, in countries that you are not a citizen of. I suggest taking that advice.

Acronis is Swiss-based and has to comply with the GDPR, due to its direct ties with the European Union. I am a dual US|EU (Croatian) citizen, with legal rights to work/live/retire in Switzerland, so I do not have to worry about storing my information "abroad".

The EU has strict regulations, and they are only going to get stricter. There have even been talks about the EU being allowed to legally break encryption recently. If you are a third-country national (not an EU/EEA/Swiss citizen), then I do not recommend Acronis cloud backup or any other EU/EEA/Swiss service for storing your personal data. America may have its problems, and privacy may be a joke, but at least you have rights and sovereignty there.