What is DoS?
How does DoS work?
If you picture internet traffic to be like real-world automobile traffic, then a DoS attack is a way to purposefully cause a traffic jam.
The biggest DoS attacks are actually DDoS attacks, which stands for Distributed Denial of Service. In this attack, the automated server requests are often sent from a botnet, or zombie computers infected with malware. The botnet attacks are “distributed” over thousands of computers around the world, wreaking havoc on the target servers when activated.