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
98 months ago
Juli, you stole Jenny's number!
Score: 11 Votes (Like | Disagree)
tigres Avatar
98 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
98 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
98 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
98 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
98 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

iPhone 17 Pro Dark Blue and Orange

iPhone 17 Release Date, Pre-Orders, and What to Expect

Thursday August 28, 2025 4:08 am PDT by
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall. At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
xiaomi apple ad india

Apple and Samsung Push Back Against Xiaomi's Bold India Ads

Friday August 29, 2025 4:54 am PDT by
Apple and Samsung have reportedly issued cease-and-desist notices to Xiaomi in India for an ad campaign that directly compares the rivals' devices to Xiaomi's products. The two companies have threatened the Chinese vendor with legal action, calling the ads "disparaging." Ads have appeared in local print media and on social media that take pot shots at the competitors' premium offerings. One...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 Pro Clear Case Leak Reveals Three Key Changes

Sunday August 31, 2025 1:26 pm PDT by
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface. The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas. Image Credit: @MajinBuOfficial The images show three alleged changes compared to Apple's iP...
maxresdefault

The MacRumors Show: iPhone 17's 'Awe Dropping' Accessories

Friday August 29, 2025 8:12 am PDT by
Following the announcement of Apple's upcoming "Awe dropping" event, on this week's episode of The MacRumors Show we talk through all of the new accessories rumored to debut alongside the iPhone 17 lineup. Subscribe to The MacRumors Show YouTube channel for more videos We take a closer look at Apple's invite for "Awe dropping;" the design could hint at the iPhone 17's new thermal system with ...