The provided sources collectively offer a comprehensive look into phishing attacks, defining them as attempts to steal sensitive information through deceptive means, often by impersonating legitimate entities. They highlight the increasing prevalence and sophistication of phishing, emphasizing the significant financial and reputational damage it can cause to both individuals and organizations. A key theme is the importance of phishing incident response plans and preventative measures, including user education, multi-factor authentication, and email filtering. Several sources focus on ZPhisher, an open-source tool used for ethical hacking and cybersecurity awareness, allowing the simulation of phishing attacks to understand and defend against them. The discussions consistently underscore the ethical considerations surrounding such tools, stressing their intended use for educational and defensive purposes only, and caution against their misuse.