This paper discusses the impact of WannaCry Ransomware attack on personal information security and the application of professional, philosophical, and sociological perspectives in ICT ethics. It analyzes the ethical issues related to the attack and the need for different perspectives to deal with them. The paper explores the professional ethics perspective, which stresses on the strict regulations and guidelines, the philosophical ethics perspective, which makes philosophical enquiries such as being correct or incorrect according to the applied ethics, and the sociological ethics perspective, which contains the normative ethics, meta-ethics, applied ethics, and descriptive ethics. The paper concludes that different perspectives play a substantial role in influencing unethical activities like the spreading of the WannaCry ransomware within a society or globally.