You can set a custom message to appear on the lock screen of your Mac, which is super useful if you ever misplace or lose your Mac. It lets people see who the Mac belongs to as soon as it's opened up, and there's no question about ownership.

You will need an administrator account to create a lock screen message on your Mac, but it's super easy to do.

  1. Click on the "" icon in the menu bar.
  2. Select System Preferences.
  3. Choose Security & Privacy.
  4. Select the "General" tab.
  5. Click on the lock icon at the bottom of the window.
  6. Enter your admin name and password. setlockscreenmessage
  7. Choose "Set Lock Message..."
  8. Enter your desired message. lockscreenmessageinput

It's useful to add contact details here, like your email address and phone number or the email address and phone number of someone who can easily get in touch with you in an emergency situation.

lockscreenmessage

What the lock screen message looks like when your Mac is locked.

If you misplace or Mac or have it stolen, this puts your contact information front and center as soon as your Mac is opened up, so whoever has it can see who it belongs to even before you activate Lost Mode using iCloud. It's also potentially useful in an emergency if someone needs to know who you are and how to get in contact with a loved one.

I'm personally always paranoid about losing my MacBook or having it taken at some location like an airport security lane, so this is a nice way to have instantly identifiable info readily available.

Top Rated Comments

Peapod Avatar
103 months ago
Juli, you stole Jenny's number!
Score: 11 Votes (Like | Disagree)
tigres Avatar
103 months ago
I don't know who you are. I don't know what you want. If you're looking for ransom, I can tell you I don't have money... but what I do have are a very particular set of skills. Skills I have acquired over a very long career. Skills that make me a nightmare for people like you. If you let my MacBook Pro 15" go now, that will be the end of it - I will not look for you, I will not pursue you... but if you don't, I will look for you, I will find you... and I will kill you
Score: 9 Votes (Like | Disagree)
PBG4 Dude Avatar
103 months ago
You know times are lean when rumor sites start making their own content!

Just kidding, I’ve been loving the new tips and tricks articles you’ve been releasing. :-)
Score: 5 Votes (Like | Disagree)
keysofanxiety Avatar
103 months ago
I don't know who you are. I don't know what you want. If you're looking for ransom, I can tell you I don't have money... but what I do have are a very particular set of skills. Skills I have acquired over a very long career. Skills that make me a nightmare for people like you. If you let my MacBook Pro 15" go now, that will be the end of it - I will not look for you, I will not pursue you... but if you don't, I will look for you, I will find you... and I will kill you
Wouldn't work I'm afraid. There's a character limit.



Attachment Image
Score: 5 Votes (Like | Disagree)
jclo Avatar
103 months ago
Yea, she was bragging with her watches. :D

My point was, don't give people too much information, especially thieves. What I spoke of earlier happens a lot more than people realize.

I know Juli meant well but, it is a bad idea, in my opinion.
I personally started using this feature after I was in an airport security line and a woman grabbed my laptop. I saw her and got it back without proving ownership, but if I'd needed to, this would have been an easy way since my name is right there.

This is a valid criticism, though, and some people may not want to use the lock screen message for this reason, but I do think people should know the option is there.

You can also use a Google Voice number and an email with non-identifying info, which will provide reasonable security. I just used a standard phone number and my own email address as an example here. Less identifying contact information is absolutely a valid way to implement this without giving anything away.
Score: 4 Votes (Like | Disagree)
Kabeyun Avatar
103 months ago
Juli, you stole Jenny's number!
The second I saw that I knew I’d be beaten to the punch. Well done!

For those under 40, here’s a dose of 80s goodness:

Score: 4 Votes (Like | Disagree)

Popular Stories

Apple Logo Spotlight

Apple Expected to Unveil Five All-New Products This Year

Wednesday January 21, 2026 10:54 am PST by
In addition to updating many of its existing products, Apple is expected to unveil five all-new products this year, including a smart home hub, a Face ID doorbell, a MacBook with an A18 Pro chip, a foldable iPhone, and augmented reality glasses. Below, we have recapped rumored features for each product. Smart Home Hub Apple home hub (concept) Apple's long-rumored smart home hub should...
airpods pro 3 purple

New, Higher End AirPods Pro Coming This Year

Tuesday January 20, 2026 9:05 am PST by
Apple is planning to debut a high-end secondary version of AirPods Pro 3 this year, sitting in the lineup alongside the current model, reports suggest. Back in September 2025, supply chain analyst Ming-Chi Kuo reported that Apple is planning to introduce a successor to the AirPods Pro 3 in 2026. This would be somewhat unusual since Apple normally waits around three years to make major...
airtag prime day 2

Apple Developing AirTag-Sized AI Pin With Dual Cameras

Wednesday January 21, 2026 12:31 pm PST by
Apple is working on a small, wearable AI pin equipped with multiple cameras, a speaker, and microphones, reports The Information. If it actually launches, the AI pin will likely run the new Siri chatbot that Apple plans to unveil in iOS 27. The pin is said to be similar in size to an AirTag, with a thin, flat, circular disc shape. It has an aluminum and glass shell, and two cameras at the...
smaller dynamic island iphone 18 pro Filip Vabrous%CC%8Cek

iPhone 18 Pro Leak: Smaller Dynamic Island, No Top-Left Camera Cutout

Tuesday January 20, 2026 2:34 am PST by
Over the last few months, rumors around the iPhone 18 Pro's front-panel design have been conflicted, with some supply-chain leaks pointing to under-display Face ID, reports suggesting a top-left hole-punch camera, and debate over whether the familiar Dynamic Island will shrink, shift, or disappear entirely. Today, Weibo-based leaker Instant Digital shared new details that appear to clarify the ...
bug security vulnerability issue fix larry

Apple's Secret Product Plans Stolen in Luxshare Cyberattack

Wednesday January 21, 2026 9:17 am PST by
The Apple supplier subject to a major cyberattack last month was China's Luxshare, it has now emerged. More than 1TB of confidential Apple information was reportedly stolen. It was reported in December that one of Apple's assemblers suffered a significant cyberattack that may have compromised sensitive production-line information and manufacturing data linked to Apple. The specific company...