According to the release notes published by Apple following the WWDC keynote, there’s also a notable new Accessory Security feature for external USB and Thunderbolt accessories…Īccording to Apple, MacBooks with an Apple Silicon processor will now prompt users for approval before an external USB or Thunderbolt accessory can communicate with macOS.

The update includes new Continuity features, Stage Manager for multitasking features, and more. No other messages follow until I remove the device.At WWDC today, Apple officially took the wraps off of macOS 13 Ventura.

I have spent hours looking for a solution but nothing works. The drive shows as being attached in the system profile, but refuses to show in the Finder or the Disk Utility.

Now neither my Macbook Pro (running 10.10.5) or our iMac (ditto) will recognise the drive, or mount it. I was told it was installed successfully. But as it needed the firmware update to make it compatible with our IOS devices - and I had already updated all of them to IOS 9 - I used a friend’s PC laptop to download the firmware and install it. It recognised the drive and I was able to transfer movie files to it. I bought the Ixpand 64gb today and after charging, put it in my MacBook USB port.

Mac not detecting usb