Are you wondering how many digits are in a Mac serial number? All Macs currently have 12-digit alphanumeric serial codes, but Apple plans to reformat them to random strings of between 8 and 12 characters for future Macs. This change does not apply to the Mac models that are sold today, but it will take effect on future Macs that the company presents. If you're looking at a Mac or MacBook, it's important to know where it was purchased. A 12-digit serial number is a good indication that it's genuine, but if it has fewer digits, it could be a fake.
Knowing the format of the serial number can help you determine if the device is genuine or not.
