macOS 27: ifconfig command no longer prints hardware MAC address
Just a quick PSA. A handful of my scripts broke today after installing macOS 27. Turns out they decided to redact the interface hardware ether/MAC addresses, all of them report 02:00:00:00:00:00 (…unless you run with "sudo") Luckily, you can still get the MAC addresses with networksetup -getmacaddress en0 1 comments on Hacker News.
Just a quick PSA. A handful of my scripts broke today after installing macOS 27. Turns out they decided to redact the interface hardware ether/MAC addresses, all of them report 02:00:00:00:00:00 (…unless you run with "sudo") Luckily, you can still get the MAC addresses with networksetup -getmacaddress en0
Just a quick PSA. A handful of my scripts broke today after installing macOS 27. Turns out they decided to redact the interface hardware ether/MAC addresses, all of them report 02:00:00:00:00:00 (…unless you run with "sudo") Luckily, you can still get the MAC addresses with networksetup -getmacaddress en0 1 comments on Hacker News.
Just a quick PSA. A handful of my scripts broke today after installing macOS 27. Turns out they decided to redact the interface hardware ether/MAC addresses, all of them report 02:00:00:00:00:00 (…unless you run with "sudo") Luckily, you can still get the MAC addresses with networksetup -getmacaddress en0
Hacker News story: macOS 27: ifconfig command no longer prints hardware MAC address
![Hacker News story: macOS 27: ifconfig command no longer prints hardware MAC address]()
Reviewed by Tha Kur
on
September 27, 2026
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