I'm trying to find the password for an encrypted iPhone backup I (accidentally) made. The way this happened doesn't make a lot of sense but this is the first time I've backed up this phone, and the first time I've used this MacBook to make a backup.
I found the iPhone in Finder, looking at the Backup section under the General tab the 'Encrypt local backup' box was already checked. I remember seeing the 'Change Password' button and wondering what password it was referring to. I considered unchecking 'Encrypt local backup' but decided to leave it checked as I thought this was the default. At no point was I asked to enter a new password for this backup encryption. I selected 'Back up data to this Mac' and created a backup.
The real problem came next. I now wanted to restore my iPhone from this backup so I went back into finder, under the General tab and hit 'Restore Backup' with the one and only backup available. It asked for a password, I assumed it was asking for my iPhone password so I entered that. It then erased my iPhone completely and tried to restore from the backup, which obviously did not work.
I'm now left with a blank phone and a locked backup which I can't access. I've tried every possible password I can think of but nothing is working. No idea what to do next but I'm completely mistified as to how 'Encrypt Local Backup" setting was already checked. This would imply that I've already set a password for this but I never did. Any advice would be appreciated.