This research paper examines the strategic information security system implemented by Westpac Bank, a leading financial institution in Australia. The study explores the advantages and disadvantages of such a system, highlighting the importance of data protection in the banking sector. It analyzes the techniques employed by Westpac Bank to safeguard its information and data, providing insights into the challenges and best practices for information security management. The paper concludes with recommendations for improving Westpac Bank's information security system and emphasizes the critical role of strategic information security in ensuring business continuity and customer trust.