In short, as put by Epic Games founder and CEO Tim Sweeney in a social media post, "It’s Discord bots going bad." Though, the full answer is a bit more detailed.

Parents activating Fortnite parental controls on a shared screen can protect their kids from voice chat toxicity, scams, and online risks for safer gaming. Fortnite - Official site "Fortnite" ...

After several rounds of initial testing, Epic has opened the door to "in-island transactions" in Fortnite, giving developers a way to sell items in their maps and experiences for V-Bucks. You'll want ...