ISO 27001:2022 - Control 5.19 - Information Security In Supplier Relationships

by Shrinidhi Kulkarni

Control 5.19 focuses on information security in supplier relationships, a crucial aspect in ensuring the overall security of an organization's data and systems. Establishing secure relationships with suppliers and service providers is essential to protecting against potential security breaches and vulnerabilities. This control outlines the necessary measures and guidelines to effectively manage information security in supplier relationships, minimize risks, and maintain the integrity of sensitive information.

ISO 27001:2022 - Control - 5.19

Importance Of Control 5.19 - Information Security In Supplier Relationships

Control 5.19 - Information Security In Supplier Relationships for ISO 27001:2022 plays a crucial role in ensuring that organizations can mitigate risks associated with their suppliers and uphold information security standards. Here are some of the key benefits of implementing this control:

1. Strengthened Supplier Relationships: By implementing Control 5.19, organizations can establish stronger partnerships with their suppliers, fostering trust and collaboration in information security practices.

2. Risk Mitigation: The Control helps organizations identify and address potential risks associated with their suppliers, enabling them to implement proactive measures to mitigate these risks effectively.

3. Compliance with ISO 27001:2022 Standards: Ensures that organizations align with the information security requirements outlined in ISO 27001:2022, demonstrating their commitment to upholding industry best practices.

4. Enhanced Data Protection: Organizations can enhance data protection measures and minimize the likelihood of data breaches or unauthorized access to sensitive information.

5. Improved Resilience Against Cyber Threats: Control 5.19 equips organizations with the necessary tools and protocols to enhance their resilience against cyber threats, thereby safeguarding their data assets from potential security breaches.

6. Streamlined Supply Chain Management: Promotes effective supply chain management by establishing clear guidelines and protocols for information security practices among suppliers, ensuring a seamless flow of data and resources.

Control 5.19 - Information Security In Supplier Relationships for ISO 27001:2022 offers a range of benefits for organizations seeking to enhance their information security practices and mitigate risks associated with their suppliers. By implementing this control, organizations can strengthen their supplier relationships, mitigate risks, comply with industry standards, enhance data protection, improve resilience against cyber threats, and streamline supply chain management effectively.

Implementing Control 5.19 In Your Organization

As businesses continue to rely on external suppliers for various goods and services, ensuring the security of information shared with these partners has become increasingly critical. This is where Control 5.19 of the ISO 27001:2022 standard comes into play, which focuses on information security in supplier relationships.

Implementing Control 5.19 involves establishing processes and procedures to ensure that information shared with suppliers is protected from unauthorized access, disclosure, alteration, or destruction. This control helps organizations mitigate the risks associated with sharing sensitive information with third parties and ensures that suppliers adhere to the same level of security standards as the organization itself.

One key aspect of implementing Control 5.19 is conducting a thorough risk assessment of each supplier to identify potential security vulnerabilities and assess the level of risk associated with sharing information with them. This assessment should take into consideration factors such as the nature of the information being shared, the sensitivity of the data, and the security measures in place at the supplier's end.

Once the risks have been identified, organizations must work with suppliers to establish clear information security requirements and guidelines. This may include outlining specific security protocols, establishing data protection agreements, and conducting regular audits to ensure compliance with these requirements.

Furthermore, organizations should also consider implementing technical controls to secure information shared with suppliers, such as encryption, access controls, and secure communication channels. These measures help protect information from unauthorized access and ensure that it remains confidential and secure throughout the supplier relationship.

Implementing Control 5.19 is essential for organizations looking to enhance the security of their information shared with suppliers. By establishing robust processes, conducting thorough risk assessments, and implementing appropriate security measures, organizations can mitigate the risks associated with supplier relationships and ensure the confidentiality and integrity of their sensitive information.

ISO 27001:2022 Documentation Toolkit

Best Practices For Managing Information Security In Supplier Relationships

With the increasing reliance on third-party suppliers for various business operations, ensuring a robust information security framework in supplier relationships has become more critical than ever. Control 5.19 of ISO 27001:2022 specifically focuses on Information Security in Supplier Relationships and lays out key guidelines for organizations to effectively manage this aspect of their operations.

To ensure compliance with Control 5.19 and enhance information security in supplier relationships, organizations must implement best practices that align with the requirements of ISO 27001:2022. Here are some key best practices to consider:

1. Conduct a thorough risk assessment: Before onboarding any new supplier, conduct a comprehensive risk assessment to identify potential vulnerabilities and evaluate the supplier’s security practices. This will help you make informed decisions and mitigate risks associated with the supplier relationship.

2. Establish clear security requirements: Clearly define your organization’s security requirements and expectations for suppliers in written contracts or agreements. Include specific clauses relating to data protection, access controls, incident response, and compliance with relevant security standards.

3. Monitor and review supplier performance: Regularly monitor and review supplier performance against established security requirements. Implement periodic audits and assessments to ensure compliance and address any gaps in information security practices.

4. Provide security training and awareness: Through training programs and awareness campaigns, educate suppliers on your organization’s security policies and practices. Encourage suppliers to adopt best practices for information security and promote a culture of security within the supplier network.

5. Implement robust access controls: Implement strict access controls for suppliers to limit access to sensitive data and systems. Use multi-factor authentication, encryption, and role-based access controls to protect against unauthorized access and data breaches.

6. Establish incident response procedures: Develop and communicate incident response procedures to suppliers to ensure a timely and coordinated response to security incidents. Define roles and responsibilities, establish communication channels, and conduct regular drills to test the effectiveness of the response plan.

7. Conduct regular security assessments: Perform regular security assessments and audits of suppliers to proactively identify and address potential security risks. Use third-party security assessments, penetration testing, and vulnerability scans to validate security controls and address any deficiencies.

By implementing these best practices, organizations can effectively manage information security in supplier relationships and adhere to the requirements of Control 5.19. Prioritizing information security in supplier relationships is crucial to safeguarding sensitive data, mitigating risks, and ensuring business continuity in today’s digitally interconnected world.

Potential Challenges And How To Overcome Them

As organizations increasingly rely on external suppliers to support their operations, ensuring the security of information shared with these third parties has become a critical concern. Control 5.19 of the ISO 27001:2022 standard specifically addresses information security in supplier relationships, outlining the requirements for organizations to establish and maintain a process for managing the security of supplier-provided information.

Despite the importance of this control, organizations may face several challenges when implementing and maintaining it. One common challenge is the lack of visibility into the security practices of suppliers. Many organizations work with a large number of suppliers, each with its own security policies and practices. As a result, it can be challenging to ensure that all suppliers are meeting the organization's security requirements.

Another challenge organizations may face is the difficulty of enforcing security requirements with suppliers. Suppliers may not prioritize security or may not have the resources to meet the organization's security standards. This can result in gaps in security controls that leave the organization vulnerable to breaches and data leaks.

To overcome these challenges, organizations can take several steps. One approach is to establish clear security requirements for suppliers and include these requirements in contracts and agreements. By clearly outlining expectations around security, organizations can hold suppliers accountable for meeting these requirements.

Additionally, organizations can conduct regular security assessments of suppliers to evaluate their compliance with security requirements. These assessments can help identify potential gaps in security controls and allow organizations to work with suppliers to address these issues.

Collaboration between organizations and suppliers is also key to overcoming challenges related to information security in supplier relationships. By fostering open communication and building strong relationships with suppliers, organizations can work together to address security challenges and ensure the security of shared information.

While implementing and maintaining Control 5.19 of ISO 27001:2022 may present challenges, organizations can overcome these challenges by establishing clear security requirements, conducting regular security assessments, and fostering collaboration with suppliers. By taking proactive steps to address these challenges, organizations can strengthen their information security practices and reduce the risk of security breaches in supplier relationships.

The Benefits Of Compliance With Control 5.19

In the newly updated ISO 27001:2022 standard, Control 5.19 emphasizes the importance of information security in supplier relationships. Compliance with this control can bring numerous benefits to an organization, ensuring that their data and systems are protected from potential threats.

One of the main benefits of compliance with Control 5.19 is the enhanced security of supplier relationships. By implementing robust security measures, organizations can reduce the risk of data breaches and cyber attacks that could impact their suppliers. This not only protects the organization's own data but also helps to maintain the trust and confidence of their suppliers.

Furthermore, compliance with Control 5.19 can help organizations to streamline their supplier management processes. By establishing clear guidelines and requirements for security practices, organizations can ensure that all suppliers meet the necessary standards and protocols.
This can help to reduce the administrative burden of managing multiple suppliers and ensure that security is a top priority in all supplier relationships.

In addition to improving security and efficiency, compliance with Control 5.19 can also help organizations to demonstrate their commitment to information security to stakeholders. By following the guidelines set out in the ISO 27001:2022 standard, organizations can show that they take information security seriously and are committed to protecting their data and systems. This can help to build trust with customers, partners, and regulatory bodies, and enhance the organization's reputation in the marketplace.

Overall, compliance with Control 5.19 for information security in supplier relationships can bring a range of benefits to organizations. From enhanced security and efficiency to improved stakeholder trust and reputation, organizations that prioritize information security in their supplier relationships can gain a competitive advantage in today's increasingly digitized and interconnected business environment. By following the guidelines set out in the ISO 27001:2022 standard, organizations can ensure that they are well-equipped to mitigate risks and protect their data and systems from potential threats in their supplier relationships.


In summary, Control 5.19 of ISO 27001:2022 focuses on ensuring information security in supplier relationships. Organizations must establish clear guidelines and protocols for sharing sensitive information with third-party suppliers. By implementing this control effectively, businesses can mitigate the risks associated with data breaches and unauthorized access. Adhering to ISO 27001 standards is essential for maintaining a secure and resilient information security framework in supplier relationships.

ISO 27001:2022 Documentation Toolkit