User level: Level 1 (4 points)When I restarted my MacBook Air today, I get a message that reads like this:
Allow accessory to connect?
Do you want to connect VIA Labs, Inc. USB2.0 Hub to this Mac?
Don't Allow or Allow.
I dont have any accessories connected other than my work monitor that has been connected for 2 years now. Thank you.
Posted on Sep 18, 2026 8:04 AM
User level: Level 10 (123,805 points)Sep 19, 2026 1:01 AM in response to anabellasunshine75
The message means macOS has detected a USB device identified as “VIA Labs, Inc. USB2.0 Hub” and is asking for permission to connect it.
Since you do not recognize the device, select Don’t Allow for now.
Apple states that this prevents the Mac from recognizing the accessory or giving it access to data on the Mac. (Apple Support)
To identify the source, disconnect the monitor's USB-C or Thunderbolt cable from the Mac, restart the Mac, and reconnect the monitor.
If the prompt returns, disconnect anything connected to the monitor's USB ports and test again.
You can also open Apple menu > System Settings > General > About > System Report > USB and look for VIA Labs or USB2.0 Hub.
The prompt itself does not indicate that the device is malicious.
Apple documents this as the normal authorization process for new or unknown USB and Thunderbolt accessories on Mac laptops with Apple silicon. (Apple Support)
Apple's documentation: Allow USB and other accessories to connect to your Mac
User level: Level 9 (53,902 points)Sep 18, 2026 9:32 AM in response to anabellasunshine75
Hi,
It appears when you connect accessaries to your Mac. I suppose it's a macOS bug.
Originally posted at discussions.apple.com/thread/256359794