I found that secure notes category in Keychain Access are not synchronised between my Mac computers.
Solution: Copy of move a secure note to iCloud keychain.
Re: http://hints.macworld.com/article.php?story=20140303121648944
MacBook Air (13-inch Mid 2011), OS X El Capitan (10.11.6)
Posted on Sep 12, 2016 2:55 AM