Security researcher finds the DDoS mastermind who took down the internet last fall

A distributed denial of service (DDoS) attack can take down a site, a server, or various parts of the internet. Attackers send to the target incredible amounts of junk traffic which bring their target down, making it impossible for real users to access that online service. One such attack happened back in mid-October last year, and it took out a large number of sites — the entire internet some would say — including Twitter, Spotify, Reddit, PayPal, and others.