Final answer:
The false statement is number 4: the most effective denial of service attacks are distributed, known as DDoS, and come from a large network of compromised computers, called a botnet, from all over the world.
Step-by-step explanation:
You've asked which statement related to denial of service attacks is false. Let's examine each statement:
- Insurance is available to offset the losses suffered by denial of service attacks.
- A denial of service attack is designed to overwhelm a Web site, making it incapable of performing normal functions.
- Web sites can employ filters to sense multiple messages from a single site.
- The most effective attacks originate from a small cluster of computers in a remote geographic region.
The correct statement that is false is number 4. Denial of Service (DoS) attacks can be far more effective when they are distributed, coming from a large number of computers often spread across the globe. This kind of attack is known as a Distributed Denial of Service (DDoS) attack, and it can be more difficult to defend against because the traffic comes from many different sources, making it harder to filter out the malicious traffic without also blocking legitimate users.
The prevalence of technological dependencies mentioned in the provided context shows the importance of cybersecurity measures like DoS protection, which aims to safeguard systems from the vulnerabilities brought on by such dependencies.