How to disable Wifi Password Sharing

wifi

My MacBook connects automatically to the WiFi of the hotel I am in using a shared password from my iPhone (apparently and without any request) and so does my iPad.

I need to stop this behavior and use different passwords on each device as I am in a hotel room and only 1 device can use the same password. How do I prevent the MacBook from logging in without asking a password?

I already cancelled the network from the list of preferred, after turning off wifi on all devices, but as soon as I select the incriminated network it logs in automatically anyway..

Best Answer

You may have enabled iCloud Keychain on your devices. If enabled, WiFi networks and the passwords associated with them are shared:

What information does iCloud Keychain store?

iCloud Keychain stores credit card numbers and expiration dates—without storing or autofilling the security code—and passwords and usernames, Wi-Fi passwords, Internet accounts, and more. Developers can also update their apps to use keychain, if the app is on a device that uses iOS 7.0.3 or later, or OS X Mavericks 10.9 and later. If you don't see items stored in iCloud Keychain, learn what to do.

From: https://support.apple.com/en-us/HT204085

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