Absolutely BRILLIANT advertising for this company, Im not sure if they just put out a press release or if 404media thought they'd really stumbled onto something big but this is an absolute NOTHING BURGER.
First of all, if you assumed anything you write on discord is private you are a fool. Second, this "spy" company barely has anything useful, at best you can find out what large servers a person uses and maybe a bit of their chat history on those PUBLIC servers.
