What type of attack is characterized by preventing legitimate users from accessing resources?

What type of attack is characterized by preventing legitimate users from accessing resources?

• A. Data breach
• B. Denial of Service
• C. Session hijacking
• D. Phishing

Answer: (B)

Denial of Service (DoS) attacks are specifically designed to disrupt the normal functioning of targeted services, making them unavailable to legitimate users. This type of attack is characterized by overwhelming the target with a flood of traffic or requests that it cannot handle, thus preventing authentic users from accessing the resources they need. In these scenarios, the attacker's goal is to render the service inoperable, which can lead to downtime, loss of productivity, and potentially significant financial losses for an organization. Denial of Service attacks can exploit various vulnerabilities, including network bandwidth limitations or application capacity, effectively locking out legitimate users while the attacker remains outside the system. The other options each define different types of security threats: a data breach involves unauthorized access to sensitive information; session hijacking refers to taking control of a user's active session; and phishing is a technique used to deceive individuals into providing sensitive information by masquerading as a trustworthy entity. None of these options specifically focus on denying access to legitimate users in the same manner that a denial of service attack does.

Denial of Service (DoS) attacks are specifically designed to disrupt the normal functioning of targeted services, making them unavailable to legitimate users. This type of attack is characterized by overwhelming the target with a flood of traffic or requests that it cannot handle, thus preventing authentic users from accessing the resources they need.

In these scenarios, the attacker's goal is to render the service inoperable, which can lead to downtime, loss of productivity, and potentially significant financial losses for an organization. Denial of Service attacks can exploit various vulnerabilities, including network bandwidth limitations or application capacity, effectively locking out legitimate users while the attacker remains outside the system.

The other options each define different types of security threats: a data breach involves unauthorized access to sensitive information; session hijacking refers to taking control of a user's active session; and phishing is a technique used to deceive individuals into providing sensitive information by masquerading as a trustworthy entity. None of these options specifically focus on denying access to legitimate users in the same manner that a denial of service attack does.