Re: GDPR says no
So, just to get this straight. When the police issue an appeal for "a 5ft 10in tall man wearing jeans and a red puffa jacket" in connection with a crime, that's fine, but a MAC address isn't?
Absolutely, which is why they so rarely use names in such circumstances. So, a Lenovo X13 Thinkpad, or whatever, the manufacturer says the device is, would also be fine.