Kevin BeaumontInteresting one spotted by Daniel B in the NHS - ClickFix (fake browser adverts to encourage people to run commands which provide remote access) have a new technique - they use browser fullscreen support (yes, some popular browsers allow any website to go fullscreen) to simulate a blue screen of death/reboot loop. Check this out:
RecklessPush38671@GossiTheDog When I set out to find more of the webpages in this campaign, I definitely didn't expect to find a fake Xhamster porn site variant 
hxxps[:]//fcontrols[.]pro/xxx.html
(Naughty bits are blurred, but you still probably don't want to view this at work.)
The fullscreen fake Windows updates gets triggered by clicking on the fake 'Xhamster wants to show notifications' dialog box.
Didn't have this on my bingo card today.