In 2021, a 19-year-old from New Jersey used a generic IP grabber on a streamer playing Fortnite. He DDoSed the streamer offline during a charity event. He was sentenced to 18 months in federal prison and ordered to pay $350,000 in restitution.
The effectiveness and legitimacy of these tools are questionable. Many of these tools:
Searching "fortnite-ip-grabber-pc" on YouTube or Google leads to a cesspool of viruses. Cybersecurity firms have analyzed hundreds of these fake tools. Here is what they actually install on your PC: