Why do I store my photos on NAS? I have always been reluctant to use cloud photo albums or network disk services to back up and save my photos. There are two main reasons: I don’t want my privacy to be watched by these service providers. The photos and videos you upload will definitely be scanned by these service providers. Even if there are no private photos, I cannot accept my privacy being violated in this way. I don’t want my data to be hijacked. After all, the data is in the hands of others. If they want to run away or raise the price one day, you will have no way to deal with it.