What is DoS Attack and How to Prevent it?

Description

Denial-of-Service attacks (DoS) shut down a machine or network by flooding it with traffic or sending information that triggers it to crash, preventing its users from accessing it. DoS attacks accomplish this by flooding the target with traffic. The DoS attack robs legitimate users (e.g. employees, members, or account holders) of the services or resources they expect. Often, DoS attacks target the web servers of high-profile organizations, such as banks, commerce, and media firms, as well as government agencies and trade associations. Although DoS attacks rarely result in the theft or loss of significant information or assets, they can cost the victim a lot of time and money to handle.