Computer network attack
Computer network attack
(also CNA)
Computer network attack definition
A computer network attack seeks to harm the normal functioning of a system. Culprits exploit weak spots in software or hardware to breach security. For instance, they can spread malware and initiate denial-of-service campaigns. Defending against such evil attempts requires vigorous protection strategies.
See also: computer network defense
Examples of computer network attack
- Phishing attacks. Hackers send deceptive emails pretending to be from legitimate sources. Unfortunately, these messages often contain malicious links or attachments that aim to steal personal and financial data.
- Denial-of-Service (DoS) attacks. Culprits flood a network or website with excessive traffic, making it unavailable to users. Such an overload effectively shuts down services and disrupts operations.
- Man-in-the-Middle (MitM) assaults. Attackers secretly intercept and relay communication between two parties. They can eavesdrop or modify the communication, potentially stealing sensitive data.
- Ransomware attacks. Malicious software is introduced to a user’s system, encrypting their files. Cybercriminals then demand a ransom from the victim to decrypt and release the captured data.
- Drive-by downloads. Visiting a compromised website or clicking a shady link can download malware onto a user’s computer. This harmful software can then steal data, monitor user activity, and harness system resources.