How does a DoS attack work?

will attempt to make an online service or website unavailable by flooding it with unwanted traffic from multiple computers.

overload the system with requests, and it will no longer be able to respond to legitimate users attempting to access the web server.

an attacker will spread malicious software to vulnerable computers, mainly through infected emails and attachments.

occurs when multiple systems flood the bandwidth or resources of a targeted system, usually one or more web servers