Encrypt all the things!

Where would you save the back up?

And would it be different with an iPhone? (does Apple even let you choose where you save stuff?) Thinking about family members with iPhones.

It's a shit story is the answer.

Signal backups today:

• Must be manually made by pushing the create backup button
  
• Are stored in a folder of your choice locally
  
  

Actually saving that file off of the phone is an exercise left to the owner of the phone. I upload mine to Google Drive, but it doesn't do this automatically.

I see some guides online suggesting the install of an app that will sync any folder on the phone into Google Drive, but I do not let any apps other than Google Apps access Google Drive so I do it manually.

The backup file is encrypted, so it doesn't matter where you put it... you should just get it off your phone somehow.