What type of attacks are considered significant security events?

Denial of Service (DoS) attacks are classified as significant security events because they have the potential to disrupt the availability of a network service, application, or website. In a DoS attack, the attacker aims to overwhelm the target system with excessive traffic or resource requests, ultimately causing it to become slow, unresponsive, or completely unavailable to legitimate users. This type of attack can lead to considerable downtime, financial loss, and damage to an organization’s reputation.

DoS attacks are often a focus for security professionals because they can indicate larger vulnerabilities or operational weaknesses within an organization. They can compromise critical infrastructure and have a direct impact on business operations, making their identification and mitigation a top priority in cybersecurity.

Other options may represent events that could be managed within normal operational security procedures; however, they do not carry the same level of risk and potential impact on service availability as DoS attacks. Password resets, regular updates, and internal team meetings are routine activities that are necessary but do not typically signify a threat to cyber security in the same disruptive manner that DoS attacks do.