In computing, a denial-of-service (DoS) or distributed denial-of-service (DDoS) attack is an attempt to make a machine or network resource unavailable to its intended users. DDoS and DoS are basically the same.
All the internet/IP attacks are Illegal. Such as; -Dox ~ (Receiving all of the personal Information about the household). -Ddos ~ (Internet loss and attack) -RAT ~ (Controlling one person(s) screen through a download).
DoS attacks can be done through just one computer, DDoS attacks require multiple locations to attack.