This case study examines a banking system breach at ABCXYZ Bank, where hackers stole confidential client data and proprietary documents, leading to a public relations crisis and regulatory scrutiny. The report focuses on the legal, regulatory, and ethical responsibilities of the bank, including the application of cybersecurity measures like cryptography and firewalls. It explores the roles of different types of hackers (black hat, white hat, and grey hat) and discusses the importance of legal frameworks and regulatory compliance, referencing relevant laws and directives in Oman and globally. The case study highlights the impact of the breach on the bank's reputation and the challenges faced by top management in managing the crisis, including the ethical implications of their response. The conclusion emphasizes the need for robust cybersecurity measures to protect sensitive data and maintain client trust, referencing key literature on cybersecurity and banking regulations.