Changed my password as soon as I saw the notification - thought someone got into my account. Glad it's nothing.
Got it on my J6 2018 that just got from a exhange.
Latin America region.
I got it today at my J7 nxt.
I lost my previous J5 so I tried to lock it. But it said that the phone will only be locked if get connected to a network.
So, I was very happy for a moment guessing it would be a notification from that phone may be.
But, alas! it was just like a prank !!
Received the notification on my A8 in the IND region this afternoon. Clicking on the notification did nothing.