Here is a passage from Epic’s old blog post about the launch of Fortnite on Android:

So far, Epic has instigated action on 47 unauthorized “Fortnite for Android” websites, many of which appear to be run by the same bad actors. We continue to police the situation with a goal of taking them offline, or restricting access by leveraging Epic’s connection to a network of anti-fraud partners (including ISPs, browser companies, and anti-virus companies) who can implement an in-browser alert like the following:

See image below. Today, Grant admits that warnings can be helpful.