A very concerning security issue on El Capitan

[scouser75]

Guys, on my Mac Pro running El Capitan, I've setup user account for each member of my family members, wifey and 2 kids). Each person has their own password. Me, wifey and eldest also have an iCloud account each. The youngest has the bare minimum and no iCloud account.

But just now, my youngest signed into her account - clicked on her picture at the startup screen and entered her password. But when it started up she was in her account (the user name at the top right was hers) BUT she actually had all my info there - documents, emails, reminders, calendar AND my iCloud account!

How could this possibly happen?

I've now deleted this user account and have setup a new one and all seems to be ok again.

 

[chrfr]

Guys, on my Mac Pro running El Capitan, I've setup user account for each member of my family members, wifey and 2 kids). Each person has their own password. Me, wifey and eldest also have an iCloud account each. The youngest has the bare minimum and no iCloud account.

But just now, my youngest signed into her account - clicked on her picture at the startup screen and entered her password. But when it started up she was in her account (the user name at the top right was hers) BUT she actually had all my info there - documents, emails, reminders, calendar AND my iCloud account!

How could this possibly happen?

I've now deleted this user account and have setup a new one and all seems to be ok again.

There are a whole lot more security issues than that with El Capitan, with that OS not having gotten a security update since July 2018.

 

[scouser75]

There are a whole lot more security issues than that with El Capitan, with that OS not having gotten a security update since July 2018.

Maybe time I finally upgrade my 'trusted' Mac Pro to something more modern!