Apple's Password Manger was Hacked!

Hello leafer258,

Thanks for using Apple Support Communities. It sounds like you're referring to iCloud Keychain. Right? If so, this service will sync passwords across all of your devices where iCloud Keychain is enabled for your Apple ID. If you have signed in to Tubi TV on another device that uses your Apple ID, that is likely what has happened. Check out Set up iCloud Keychain for further details.

In regards to Bluetooth, where are you disabling it? If you disable it from the Control Center, your Bluetooth will stay disabled only until one of the following occurs. This information is from Use Bluetooth and Wi-Fi in Control Center.

"If Bluetooth is turned off, you won’t be able to connect your iOS or iPadOS device to your Bluetooth accessories until:

• You turn on Bluetooth in Control Center.
• You connect to a Bluetooth accessory in Settings > Bluetooth, or by tapping the AirPlay icon  or  and selecting a bluetooth accessory.
• It's 5 AM local time.
• You restart your device."

Take care.

No, the keychain was not hacked. When you enter a password it is saved in Keychain, and synced to all of your devices that share an Apple ID.

Possibly you are sharing an Apple ID with your friend (bad idea), or your friend visits the same sites that you do.