Why is my MacBook visibile on Bluetooth after Yosemite install? Since upgrading to Yosemite (from Mavericks) my MacBook Pro (Retina mid 2014) is visible (in "advertising mode") on Bluetooth (at least to my iPhone). It was not visible prior to Yosemite, and there's nothing that I did on my iPhone (that I can recall) to make this happen.

Why is my Mac visible on Bluetooth, and how do I hide it again?
Bluetooth needs to be in advertising mode for Yosemite's Handoff to work.

To disable Handoff in Mac Yosemite: Select System Prefs > General  and uncheck "Allow Handoff between this Mac and your iCloud devices".