Questions about storing important backup files that contain privacy

Does anyone have any ideas for my storage solution? Now I often need to back up some special files, which contain a lot of my private information. These files are not used many times, but they need to be backed up to prevent one day Ready-to-use, 500G files need to be backed up every six months (one year is 1TB)



I need a storage medium with high stability, how about a 1TB TF card? I want to put this storage …

back back up backup files ideas important information privacy private questions solution special storage