I would also install something like ublock origin (or that malwarebytes extension someone else mentioned) in ALL browsers they have installed. These both seem to have a feature that’ll help prevent the web browsers from loading up the scam sites.
How I see a lot of these things happening: they’ll be on something like a sports site, or recipes, and an ad or some redirect will pop up, bringing them to the scam pop up. Having one of the above extensions installed will pretty effectively stop it from happening. But (and I say this from experience), much like condoms, nothing is 100% effective.
I would also install something like ublock origin (or that malwarebytes extension someone else mentioned) in ALL browsers they have installed. These both seem to have a feature that’ll help prevent the web browsers from loading up the scam sites.
How I see a lot of these things happening: they’ll be on something like a sports site, or recipes, and an ad or some redirect will pop up, bringing them to the scam pop up. Having one of the above extensions installed will pretty effectively stop it from happening. But (and I say this from experience), much like condoms, nothing is 100% effective.