Scam Number: (833) 239-0941
Scammer’s Website or Email: ultraviewer
Additional information about this scam: I did not get any pop-up, but a poster reports a “FAKE Microsoft security alert!!!”
https://www.numberguru.com/phone/833/239/0941/
I called it and the scammer started making wild claims:
Callback: (916) 888-5747 James
seems they’ve taken it down already as it’s ringing twice then going dead now
9168885747 still works
maybe they just dont like my number starts with +44 
833-239-0941 Alice Wednesday 1-24-24 1:24PM EST
888-483-5007 Call Back
Welcome!! @jimbobkirk
thanks! 
been watching vids of these kinda things for months, so i got setup and trying my hand at it i already saw you posted a few numbers, so thanks to you
@jimbobkirk Welcome to the community 
Welcome!! The most important thing is to have fun!
Welcome to the gang.