What Is Denial Service Attack?

In computing, a denial-of-service attack is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet.

What is denial of service attack with example?

A Denial-of-Service (DoS) attack is an attack meant to shut down a machine or network, making it inaccessible to its intended users. ... Buffer overflow attacks – the most common DoS attack. The concept is to send more traffic to a network address than the programmers have built the system to handle.

What is an example of denial of service?

For example, Black Friday sales, when thousands of users are clamouring for a bargain, often cause a denial of service. But they can also be malicious. In this case, an attacker purposefully tries to exhaust the site's resources, denying legitimate users access.