This is very much untrue. 1Password syncs an encrypted vault through separate channel (e.g. Dropbox, iCloud) -- it has zero-knowledge of your passwords. It just picks up a big encrypted blob from wherever you store it.
"The easiest way for us to protect your data and data about you is to not have that data in the first place. You may be noticing a theme by now: we can’t reveal or abuse data that we don’t have.
We do not have your 1Password data. We do not know your 1Password Master Password. We don’t even know if you use 1Password. We do not know how many items you have in your vault or their type."
"The easiest way for us to protect your data and data about you is to not have that data in the first place. You may be noticing a theme by now: we can’t reveal or abuse data that we don’t have.
We do not have your 1Password data. We do not know your 1Password Master Password. We don’t even know if you use 1Password. We do not know how many items you have in your vault or their type."
https://support.1password.com/private-by-design/#what-we-cou...