Apple Plans to Switch to Randomized Serial Numbers for Future Products Starting in 2021 [Updated] - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Plans to Switch to Randomized Serial Numbers for Future Products Starting in 2021 [Updated]

In an internal memo shared with Apple Authorized Service Providers, Apple has indicated that it plans to update its serial number format to a randomized alphanumeric string for future products starting in late 2020 (update: Apple now says 2021). Apple says all serial numbers that exist before the change is made will remain the same.

macos catalina serial number
Apple already uses alphanumeric serial numbers, but it has long been possible to determine the date and location that a product was manufactured based on the current format. Readers would often use serial numbers to glean more information about their devices. The randomized format would likely not be decipherable, or at least hard to, and it could also help to reduce fraud.

The memo was published today and obtained by MacRumors from a reliable source. It is unclear if the change will apply worldwide.

Update: Apple has delayed this change until some point in 2021, according to an internal document viewed by MacRumors.

Popular Stories

Home Hub Command Center with Dome Base Feature

Apple Smart Home Hub to Feature iMac G4-Style Design

Wednesday September 30, 2026 4:36 am PDT by
Apple's long-rumored smart home hub will have an iMac G4-style design and a host of unique features, Bloomberg's Mark Gurman reports. The smart home hub is said to feature a square 6-inch display, with variants that can be placed on a countertop or mounted on a wall. It features a single FaceTime camera on the front, with microphones and speakers in its connected base. Gurman described the...
HomePod minis on gradient feature 1 1

Three New Apple Smart Home Products Coming on October 13

Wednesday September 30, 2026 4:04 am PDT by
Apple plans to introduce a series of new smart home products on Tuesday, October 13, according to Bloomberg's Mark Gurman. Apple reportedly plans to debut its long-awaited smart home hub device, a new HomePod mini, and a new Apple TV on the date. The new HomePod mini and Apple TV are set to retain their existing designs, but tout faster chips to support Siri AI. The new HomePod mini will...
Apple TV Sans Remote Feature

New Apple TV 4K Leaked

Friday September 25, 2026 8:16 am PDT by
MacRumors contributor Aaron Perris has uncovered an image file from Apple for an unreleased Apple TV 4K, suggesting that a new model will finally be released soon. The image is specifically for an "Apple TV 4K (4th generation)" model. Apple TV 4K (4th generation) image (on a gradient) The image reveals that the Apple TV will have the same external design as the current model, with all of its...

Top Rated Comments

88 months ago
Then technically it's not a serial number anymore. Serial numbers are in series.

But whatever. It's irrelevant to the concept.
Score: 28 Votes (Like | Disagree)
madmin Avatar
88 months ago
Please emojify my serial number !!

/s
Score: 22 Votes (Like | Disagree)
88 months ago
I like this idea overall, but Apple really ought to include some sort of check digit ('https://en.wikipedia.org/wiki/Check_digit') mechanism, and publish the formula they picked, so that it's possible to determine with high confidence whether a supplied Apple serial number could actually really be a genuine Apple serial number. (Only Apple would know for sure, of course.) There are all sorts of real world scenarios when businesses, governments, and other organizations need to take accurate inventories and when somebody transposes a digit or otherwise gets the serial number wrong. It'd be darn helpful if all these organizations could know, right away, when they've collected a serial number in their inventory taking that cannot possibly be a genuine Apple serial number.

Also, Apple ought to eliminate all characters from serial numbers that can be easily mistaken for other characters. This generally includes (as examples):

0, O, D, and (probably) Q
5 and S
1, 7, and I
8 and B
U and V

The choice of typeface can matter a lot here -- for example, to distinguish A from R -- but some easy-to-confuse characters ought to be dropped no matter what the typeface. This'll help even Apple's own support teams over the phone, etc., as they deal with consumers. There are still plenty of characters available to allow plenty of serial numbers for billions of products.

Finally (and now that Jony Ive has left!), don't be afraid to make serial numbers easier to read (in larger type) on devices. Apple has got typographic experts, so spend some effort making serial numbers easier to read within whatever (sometimes lame) aesthetic goals Apple is trying to achieve. IBM ThinkPads were pretty damn stylish, and they had big, easy to read serial numbers in easy to inventory places.
Score: 17 Votes (Like | Disagree)
tennisproha Avatar
88 months ago
This would be a switch for the worse. Serial numbers are the only remaining useful tool in determining more info about a product, like chip type used, place or date of manufacture, etc. This makes it harder for consumers to get product information Apple hides.

I have yet to find examples of serial number being used for outright fraud.
Score: 16 Votes (Like | Disagree)
88 months ago
Anything to reduce fraud is appreciated.
Score: 13 Votes (Like | Disagree)
guzhogi Avatar
88 months ago
I also wish they'd make the serial numbers bigger and easier to read. I work in IT, and it's a real pain to read the serial numbers off the bottom. Before anyone asks, checking About My Mac / Settings → General → About isn't possible if the device doesn't even start up. Maybe add a barcode version of it so I can use a barcode scanner.
Score: 11 Votes (Like | Disagree)
Latest Stories
MacBook Pro With OLED Touch Screen Rumored to Launch in October or November
MacBook Pro With OLED Touch Screen Rumored to Launch in October or November
1 hour ago
Apple's All-New Home Hub Rumored to Launch in These Four Colors
Apple's All-New Home Hub Rumored to Launch in These Four Colors
2 hours ago
iPhone 18 Pro Aperture Control Goes Fully Manual in Halide 3.2
iPhone 18 Pro Aperture Control Goes Fully Manual in Halide 3.2
3 hours ago
Apple Stores Receive 'Do Not Open' Boxes Ahead of Smart Home Products Launch
Apple Stores Receive 'Do Not Open' Boxes Ahead of Smart Home Products Launch
4 hours ago
iPhone 18 Pro Sales Jump in China Ahead of iPhone Duo Launch
iPhone 18 Pro Sales Jump in China Ahead of iPhone Duo Launch
4 hours ago
Apple TV Still Down for Some Users Following Apple Services Outage
Apple TV Still Down for Some Users Following Apple Services Outage
5 hours ago
PSA: Apple Mail on Mac May Stop Syncing Microsoft 365 Accounts Today
PSA: Apple Mail on Mac May Stop Syncing Microsoft 365 Accounts Today
5 hours ago
Apple's Smart Home Hub: Everything We Know So Far
Apple's Smart Home Hub: Everything We Know So Far
16 hours ago
Apple's Home Hub Borrows From the iPhone Duo's StandBy Mode
Apple's Home Hub Borrows From the iPhone Duo's StandBy Mode
17 hours ago
Apple Invites App Updated With Three New Features
Apple Invites App Updated With Three New Features
21 hours ago
Apple Event on October 13?
Apple Event on October 13?
22 hours ago
Apple Watch SE 3 vs. Series 12 Buyer's Guide: Which Should You Buy?
Apple Watch SE 3 vs. Series 12 Buyer's Guide: Which Should You Buy?
1 day ago
iPad Mini 8 to Offer These 10 New Features
iPad Mini 8 to Offer These 10 New Features
1 day ago
DoorDash Unveils AI Food Ordering Through Apple's Messages App
DoorDash Unveils AI Food Ordering Through Apple's Messages App
1 day ago
Amazon Takes Up to $150 Off Select M5 MacBook Air Models
Amazon Takes Up to $150 Off Select M5 MacBook Air Models
1 day ago
Apple Still Plans to Release a New Full-Sized HomePod
Apple Still Plans to Release a New Full-Sized HomePod
1 day ago
Apple Working to Expand HomeKit
Apple Working to Expand HomeKit
1 day ago
Apple Smart Home Hub to Feature iMac G4-Style Design
Apple Smart Home Hub to Feature iMac G4-Style Design
1 day ago
Three New Apple Smart Home Products Coming on October 13
Three New Apple Smart Home Products Coming on October 13
1 day ago
Apple Pay Now Available in India With Axis Bank Cards
Apple Pay Now Available in India With Axis Bank Cards
2 days ago
OpenAI Launches Always-On 'Dots' Agents to Rival Meta's Muse
OpenAI Launches Always-On 'Dots' Agents to Rival Meta's Muse
2 days ago
AirPods 5 Teardown: Batteries Removable, Case Still Tough
AirPods 5 Teardown: Batteries Removable, Case Still Tough
2 days ago
iPhone 18 Pro Owners Complain of Speaker Crackling or Popping
iPhone 18 Pro Owners Complain of Speaker Crackling or Popping
2 days ago
You Can 'Get Ready' for iPhone Duo Pre-Orders on October 12
You Can 'Get Ready' for iPhone Duo Pre-Orders on October 12
2 days ago
Apple Pay Reportedly Launching in India Today
Apple Pay Reportedly Launching in India Today
2 days ago
Apple Releases New AirPods Beta Firmware
Apple Releases New AirPods Beta Firmware
2 days ago
Apple Shares New Guide for Using iOS 27 Parental Controls
Apple Shares New Guide for Using iOS 27 Parental Controls
2 days ago
Apple Creator Studio and Final Cut Camera Get New Features
Apple Creator Studio and Final Cut Camera Get New Features
2 days ago
Apple Explains Why It Removed ICE Tracking Apps Last Year
Apple Explains Why It Removed ICE Tracking Apps Last Year
2 days ago
Amazon Expands $779.99 Apple Watch Ultra 4 Deal to More Models
Amazon Expands $779.99 Apple Watch Ultra 4 Deal to More Models
2 days ago

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors