I recently had an issue with pop up password requests asking for my iCloud password for Messages. I entered what I thought was my 'AppleID' password, which I have been using for years to log into the Apple Store and iTunes Store, thinking this is what I was being asked for, but it was rejected. I then started to panic that the pop up was maybe a phishing scam or some kind of malware that was trying to trick me, so in the end I went to this page https://appleid.apple.com/ And went through the resetting password procedure. Then I went to Keychain Access utility to check that it had stored my password for future reference. I searched 'iCloud' and clicked on the top search result in Keychain Access and asked to 'Show password' and the password it shows is some ridiculously long chain of letters that would be impossible to remember and isn't my chosen password. Same goes for Apple ID Authentication (doesn't show my chosen password, shows a huge character string instead). Clearly I'm missing something here. Can someone explain simply what is the relationship between Apple ID and the iCloud login. And where to do go in Keychain Access utility to check or retrieve my password/s? And what exactly is the huge character string that I'm seeing in Keychain Access as the 'password' for these Apple/icloud related items? Very confused.