Denial of Service Attacks: A Denial of Service (DoS) attack is a cyber threat that aims to make a computer or network resource unavailable to its intended users. It works by overwhelming the target with a flood of fake traffic or sending it information that triggers a crash. This prevents legitimate users from accessing the service, as the system becomes too busy dealing with false requests. It's like blocking the entrance of a store with a huge crowd so that genuine customers can't get in.
Imagine you're in a small shop that can only fit a certain number of people at a time. Now, if someone sends a bunch of robots to the shop, they would take up all the space, not letting any real customers inside. That's how a Denial of Service attack works – it sends a flood of fake visitors to a website or an online service, making it so busy that real people can't use it.