![]() ![]() If there is more than the acceptable deviation, such as when used via a Bluetooth repeater or some other kind of nefarious mechanism, the unlock request will fail because the system realizes the Watch is outside the “safe” zone for unlocking the Mac. If the delay is within the acceptable parameters, the Watch unlock request is approved and your Mac is unlocked. Since the Mac knows the watch has to be within 3 meters, the timestamp on the packet has a very tight tolerance for delay. When the Watch sends a Bluetooth signal to trigger the unlock, the Mac sends an additional 802.11v request to the watch via wireless. When the Mac detects that the Watch is within 3 meters of the Mac it is connected to via Handoff it is in the right range to trigger an unlock. On your iPhone, open the Apple Watch app, then tap Passcode. On your iPhone, open the Apple Watch app, then go to General > Apple ID. Rather than just assume that the Watch is in range because it’s communicating over Bluetooth, Apple wanted to increase the security of the Watch/Mac connection. On your Mac, choose Apple menu ( ) > System Preferences, then click iCloud. ![]() Apple has decided to use Time of Flight as a security mechanism for the Watch Unlock feature. The 802.11v timestamp has been proposed to be used as a “time of flight” calculation all the back since 2008. Quoting from this other answer, your Mac calculates the distance of your watch from it, after pairing with it over Bluetooth. As an enterprise admin, if your users are using the watch unlock feature, then you can assume that they have 2FA enabled. From the same page, a user must be signed into iCloud on both devices. Apple Watch supports handing off from your watch to your iPhone or Mac.From Apple's support article on the topic, it appears that prior to being allowed to enable this setting, the user must have 2FA enabled. On your Apple Watch, press and hold the long flat button next to the Digital Crown, then swipe Power Off. Apple Watch: In the Apple Watch app on your iPhone, tap General and turn on Enable Handoff. On your Mac, go to the Apple menu and choose Restart.iPhone or iPad: Go to Settings > General > AirPlay & Handoff, then turn on Handoff.Mac with earlier versions of macOS: Choose Apple menu > System Preferences, click General, then select “Allow Handoff between this Mac and your iCloud devices.”.Turn on “Allow Handoff between this Mac and your iCloud devices.” However, last night I walked over to check the MacBook after getting repeat. Seemed for awhile that it was mainly doing this when the MacBook Pro Retina (2014) was charging. You can check into to see the exact location of your Mac, iPhone, iPad, Apple Watch, or AirPods (out of their case and near your phone) see. Mac with macOS Ventura or later: Choose Apple menu > System Settings, click General in the sidebar, then click AirDrop & Handoff on the right. Anyone else running into that Open Mac with the Apple Watch (Series 2) is causing the MacBook to repeatedly open, even after putting to sleep and closing the computer.Each device has Bluetooth and Wi-Fi turned on.To see the Apple ID used by Apple Watch, open the Apple Watch app on your iPhone, then go to General > Apple ID. ![]()
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