I loaded iTunes and backed up my phone. I didn't get a prompt to set a password for the encrypted backup. I have now cleared my phone due to other issues and iTunes is now asking for a password to restore my iPhone to the backup. I've tried my iCloud and other pass codes to no avail. Any ideas how it would set a password for my backup without prompting and what I can do to access the backup?
See Disable iOS backup encryption - Apple Community. In particular:
If you have forgotten the password, or were not aware that encryption had been enabled, consider that it might be any computer, Apple ID, Wi-Fi password or device PIN that you've used in the past, working from the assumption that you might have reused a common password that you were using when encryption was first activated. See About encrypted backups on your iPhone, iPad, or iPod touch - Apple Support for details.
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If you can't remember your password, you have two options:
Password for iTunes encrypted backup
