storage system allows you to access your files saved onto the cloud from multiple devices, including your iPhone, iPad, iPod Touch, or web browsers. Once signed in, your device will likely keep you logged into your iCloud in order to facilitate easier access to your files. This can sometimes be a concern for users who would like to protect their files, so here is an easy way to log out of all opened iCloud sessions across your devices.
How To Log Out of iCloud
Go to your iCloud
and sign-in using your Apple ID.
Next, click on the small arrow next to your username
> Account Settings
Click on Advanced
Click on Sign Out of All Browsers
to close all of your open iCloud sessions: