Routine check of my online security, noticed that my active devices included a Huawei Mate 9. Since I have never owned a Huawei and after mild panic, signed out of all devices, changed password and signed back into my Samsung Note 9 and checked again. All devices now signed out including the dreaded Huawei. Signed back into main pc to do more checking and noticed the damn Huawei shows up as being signed in as well now with my Samsung. Different IP addresses although plausible same phone as my Samsung phone is showing up as my ISP and the mysterious Huawei is showing up as my cellular provider. It also shows the Huawei as being signed into in Chrome/Safari/Firefox. I've never owned a Mac in my life either so am wondering what is going on. The only thing I can think of is I signed back into Firefox on my Samsung Note 9 in between logging onto my PC and poking around google account security. Could logging into Google through Firefox create an additional "Device" in device management? When I try to locate, lock, or ring the Huawei phone, those options are not available to me like on my actual Samsung note 9 under device management.