transfer sensitive data to new imac
I hope to buy a new desktop 2 questions, please if you can help
1) I understand that my desktop will have backed up to icloud and I can use that to transfer most data, but I have 2 photo albums, compiled but not printed, on my *existing* iMac, and dont want to lose them during any transfer. How to ensure the 2 albums are secured,
2) I have a Western Digital HD which has ceased to communicate with my iMac during a former IOS update; can this be set to a NEW iMac?
iMac 21.5″, macOS 10.15