If your Mac is lost or stolen
If you set up Find My Mac before your Mac went missing, you can use Find My to help locate and protect it. If not, you can still take steps to help protect your information.
If you set up Find My for your missing Mac
Open Find My.
In the Find My app on another Apple device, select the Devices tab.
On the web, sign in to iCloud.com/find, then click All Devices.
Select your Mac to view its location on a map. If your Mac isn't listed, learn how you can still protect your account.
If your Mac is nearby, you can have it play a sound to help you or someone nearby find it.
Remotely lock your Mac with a passcode to help prevent unauthorized access. Tap Activate under Mark As Lost in the Find My app, or select Lock on iCloud.com. You can display a custom message with your phone number on your missing device's Lock screen in case someone finds your Mac.
You can still track your device's location while it's locked as long as it's connected to the internet. If it's offline, the actions take effect the next time your Mac is online.
Report your lost or stolen Mac to local law enforcement. Law enforcement might request the serial number of your Mac. Find your device serial number.
If you don't think you can recover your missing Mac, you can erase it remotely. This deletes all of your data from your Mac and prevents anyone else from accessing that information. When you erase your Mac, all of your information is deleted from the device, and you won't be able to find it using Find My.
Remove your lost or stolen Mac from your list of trusted devices.
Learn more about using the Find My app to locate a lost or stolen device.
If you can't find your Mac or didn't set up Find My
Find My Mac is the only Apple service that can help track or locate a lost Mac. If you didn’t set up Find My Mac before your Mac was lost, or you can’t locate it, these steps might help you protect your data:
Change your Apple ID password to prevent anyone from accessing your iCloud data or using other services (such as iMessage or iTunes) from your Mac.
Change your passwords for other accounts you use with your Mac, including email, banking, and social media sites like Facebook or Twitter.
Report your lost or stolen Mac to local law enforcement. They might request the serial number of your computer. You can find this information on the original box or receipt you received when you purchased your Mac.
If you can't unlock your Mac
After you locate your Mac, you can unlock it by entering the passcode that you created when you locked it with Find My.
If you can't remember that passcode, you have three options:
Sign in to iCloud.com/find, then select your Mac from the Devices menu. Select Unlock and follow the steps to verify your identity.
Unlock your Mac from your iPhone, iPad, iPod touch, or Apple Watch using your device passcode.
Take your Mac to an Apple Authorized Service Provider along with your proof of purchase.
You can look up your passcode for a limited time.
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