Well, making some assumptions based on your not really worded well question, illegal streaming services like shown through fmhy just scrape the internet for the content from sites that have it illegally uploaded, and serve it to you from there. Thats how they get away with it, since they aren’t actually keeping any illegal content, all they do it scrape the internet. If you’re asking how regular illegal streaming sites work, they have the video on a server, and then serve it to you. If you’re asking how regular streaming services work, it’s practically the same thing. Of course I’m simplifying things a bit as you’ll have DRMs here and there, along with a few other things to get services to work, but you’re probs not asking about that.

Hey be careful with that rhetoric man, under Trump’s new definitions you could be considered a terrorist. Sic semper tyrannis.