How does ISO/IEC 27001:2022 Provide Cyber Security for the Banking Industry?

Financial institutions manage large volumes of sensitive customer and transactional data. As reliance on electronic systems continues to grow, so does exposure to cyber security threats.

ISO/IEC 27001:2022 provides a comprehensive framework for identifying, assessing, and managing information security risks within the banking and financial services sector. Certification demonstrates a structured and consistent approach to protecting confidential financial information and supports customer confidence and brand trust.

In addition to improving cyber security posture, ISO/IEC 27001 supports compliance with regional and international financial regulations by promoting risk‑based governance, documented controls, and ongoing improvement of security practices.

Banking is also heavy on regional and national financial regulations that relate to information security

In the Banking sector there are numerous regional and national financial regulations with which banks must comply. An ISO/IEC 27001 certification can aid in compliance through implementation of a strong, structured ISMS.

North America

• NYDFS Cybersecurity Regulation (23 NYCRR Part 500)
  This is one of the most significant state-level financial regulations in the U.S. It requires licensed financial institutions in New York to maintain a robust cybersecurity program, including specific mandates for multi-factor authentication (MFA), regular penetration testing, and annual compliance certifications. ISO 27001’s risk-based approach aligns closely with these requirements, particularly in risk management (Clause 6.1.2) and access control (Annex A.8.3)
• SEC Cybersecurity Disclosure Rules: Effective in late 2023, these rules require public companies to disclose “material” cybersecurity incidents within four business days and provide annual reports on their risk management and governance strategies
• Gramm-Leach-Bliley Act (GLBA): A federal law requiring financial institutions to explain how they share and protect customer data. ISO 27001 helps fulfill GLBA’s “Safeguards Rule” by providing the necessary documentation and risk assessment frameworks.

Europe

• The Digital Operational Resilience Act (DORA) integrates seamlessly into an ISO/IEC 27001:2022 certified ISMS by acting as a prescriptive regulatory layer atop the standard’s flexible management framework. While ISO 27001 provides the high-level governance structure, specifically through Clause 4.2, which requires identifying the requirements of interested parties and regulators. DORA introduces specific, mandatory mandates for the financial sector regarding ICT risk management, incident reporting, and digital resilience testing. Organizations can leverage their ISO/IEC 27001 risk assessment process (Clause 6.1.2) and Annex A controls (such as 5.21 for third-party services and 5.24 for incident management) to satisfy DORA’s five pillars. Ultimately, an ISO/IEC 27001-certified system provides the organizational “muscle memory” for compliance and continuous improvement, while DORA provides the specialized criteria for operational resilience, creating a unified approach to both international best practices and European law

Asia-Pacific

• APRA CPS 234 (Australia): Issued by the Australian Prudential Regulation Authority, this standard is mandatory for banks, insurers, and superannuation funds. While it shares foundational principles with ISO/IEC 27001, it is more prescriptive regarding Board-level accountability and mandates reporting significant security incidents to APRA within 72 hours
• MAS Technology Risk Management (TRM) Guidelines (Singapore): These guidelines set clear expectations for how banks and insurers in Singapore must govern technology and cyber risks. ISO/IEC 27001 is often used as the base framework to build the ISMS, which is then mapped to the more granular MAS TRM requirements for local compliance
• FISC Security Guidelines (Japan): Developed by the Center for Financial Industry Information Systems, these are the de facto security standards for the Japanese financial sector. They include specific technical, operational, and facility standards that organizations often map to their ISO 27001 controls
• HKMA SPM TM-G-1 (Hong Kong): The Hong Kong Monetary Authority’s Supervisory Policy Manual provides the general principles for technology risk management that authorized institutions must consider

Middle East

• SAMA Cybersecurity Framework (Saudi Arabia): Mandatory for all licensed financial institutions in the Kingdom, this framework is structured into domains such as governance, risk management, and third-party security. It explicitly draws from global benchmarks like ISO 27001 but is tailored to the Saudi regulatory environment
• NESA Information Assurance Standards (UAE): A national standard focused on protecting critical information infrastructure. Unlike the risk-based approach of ISO 27001, NESA follows a threat-based approach, requiring organizations to mitigate specific threats identified by the UAE national authority
• DIFC and ADGM Data Protection Laws (UAE): Financial free zones like the Dubai International Financial Centre (DIFC) and Abu Dhabi Global Market (ADGM) have their own data protection regimes that align closely with GDPR but include specific requirements for local data residency

Latin America

Brazil BACEN Resolution 4,893: The Central Bank of Brazil (BCB) mandates specific cybersecurity policies and cloud service requirements for financial institutions. Recent updates in 2025 (Resolutions 5,274 and 538) have added stricter requirements for intrusion testing and authentication mechanisms

Contact Perry Johnson Registrars, a full-service registrar that carries multiple international accreditations, at 080-22220340 for additional details on how we can help you achieve an ISO 27001 certification, and protect your company’s brand.