is this malware? my 2017 15 macbook pro at startup shows a rectangle with a message that it can
At startup I first get a request to choose a WiFi network. The next screen is a rectangle with the message “can’be used until a critical update is installed”. In safe mode there are no updates outstanding. At the top there is a yellow triangle with what appears to a tuxedoed torso on the right side. At shutdown the previous night no problems.
MacBook Pro 15″, macOS 13.7