← Back to Glossary

What is Denial of Service (DoS)?

by Bethany Hendricks on Security • September 8, 2020

This is usually done by means of automation and involves sending a large number of requests to network endpoints/webservers at a rapid rate. This type of attack is usually carried out from a single client source and is easy to mitigate using network firewall appliances such as a web application firewall. Other advanced versions of this kind of attack include Distributed Denial of Service (DDoS), Hash DoS, and DNS flooding.