An "attack" refers to an aggressive action aimed at causing harm or damage to a person, group, or object. This can occur in various contexts, such as physical confrontations, military operations, or cyber incidents. In military terms, an attack may involve strategic planning and coordination to achieve specific objectives, often involving weapons and troops. In the realm of cybersecurity, an attack can involve unauthorized access to computer systems or networks, aiming to steal data or disrupt services. Common types of cyber attacks include phishing, malware, and denial-of-service attacks. Understanding these different forms of attack is crucial for developing effective defense strategies.