The most critical finding of an application security and DevOps audit would be that the application architecture and configurations did not consider security measures. This finding would indicate that the application is vulnerable to various threats and attacks, such as data breaches, unauthorized access, injection, cross-site scripting, denial-of-service, etc. This finding would also imply that the application does not comply with the security standards and best practices for cloud services, such as ISO/IEC 27017:20151, CSA Cloud Controls Matrix2, or NIST SP 800-1463. This finding would require immediate remediation and improvement of the application security posture, as well as the implementation of security controls and tests throughout the DevOps process.
Certifications with global security standards specific to cloud are not reviewed, and the impact of noted findings are not assessed (A) would be a significant finding of an application security and DevOps audit, but not the most critical one. This finding would indicate that the organization is not aware or informed of the security requirements and expectations for cloud services, as well as the gaps or issues that may affect their compliance or performance. This finding would require regular review and analysis of the certifications with global security standards specific to cloud, such as ISO/IEC 270014, CSA STAR Certification, or FedRAMP Authorization, as well as the assessment of the impact of noted findings on the organization's risk profile and business objectives.
Outsourced cloud service interruption, breach, or loss of stored data occurred at the cloud service provider (B) would be a serious finding of an application security and DevOps audit, but not the most critical one. This finding would indicate that the cloud service provider failed to ensure the availability, confidentiality, and integrity of the cloud services and data that they provide to the organization. This finding would require investigation and resolution of the root cause and impact of the incident, as well as the implementation of preventive and corrective measures to avoid recurrence. This finding would also require review and verification of the contractual terms and conditions between the organization and the cloud service provider, as well as the service level agreements (SLAs) and recovery time objectives (RTOs) for the cloud services.
The organization is not using a unified framework to integrate cloud compliance with regulatory requirements © would be an important finding of an application security and DevOps audit, but not the most critical one. This finding would indicate that the organization is not following a consistent and systematic approach to manage and monitor its cloud compliance with regulatory requirements, such as GDPR, HIPAA, PCI DSS, etc. This finding would require adoption and implementation of a unified framework to integrate cloud compliance with regulatory requirements, such as COBIT, NIST Cybersecurity Framework, or CIS Controls, as well as the alignment and integration of these frameworks with the DevOps process.

The shift-left concept of code release cycles is a practice that aims to integrate testing, quality, and performance evaluation early in the software development life cycle, often before any code is written. This helps to find and prevent defects, improve quality, and enable faster delivery of secure software. One of the key aspects of the shift-left concept is the incorporation of automation to identify and address software code problems early, such as using continuous integration, continuous delivery, and continuous testing tools. Automation can help reduce manual errors, speed up feedback loops, and increase efficiency and reliability123 The other options are not correct because:
Option A is not correct because large entities with slower release cadences and geographically dispersed systems are more likely to face challenges in adopting the shift-left concept, as they may have more complex and legacy systems, dependencies, and processes that hinder agility and collaboration. The shift-left concept requires a culture of continuous improvement, experimentation, and learning that may not be compatible with traditional or siloed organizations4 Option C is not correct because a waterfall model is the opposite of the shift-left concept, as it involves sequential phases of development, testing, and deployment that are performed late in the software development life cycle. A waterfall model does not allow for early detection and correction of defects, feedback, or changes, and can result in higher costs, delays, and risks5 Option D is not correct because maturity of start-up entities with high-iteration to low-volume code commits is not a sign of the shift-left concept, but rather a sign of the agile or lean software development methodologies. These methodologies focus on delivering value to customers by delivering working software in short iterations or sprints, with frequent feedback and adaptation. While these methodologies can support the shift-left concept by enabling faster testing and delivery cycles, they are not equivalent or synonymous with it6

Database backup and replication guidelines are essential for ensuring the availability and integrity of data in the event of a disruption or disaster. They describe how the data is backed up, stored, restored, and synchronized across different locations and platforms. An auditor should review these guidelines to verify that they are aligned with the business continuity objectives, policies, and procedures of the organization and the cloud service provider. The auditor should also check that the backup and replication processes are tested regularly and that the results are documented and reported. Reference:
ISACA, Certificate of Cloud Auditing Knowledge (CCAK) Study Guide, 2021, p. 96 Cloud Security Alliance (CSA), Cloud Controls Matrix (CCM) v4.0, 2021, BCR-01: Business Continuity Planning/Resilience

According to the ISACA Cloud Auditing Knowledge Certificate Study Guide, the auditor should report the findings to the management of the organization being audited, as they are the primary stakeholders and decision makers for the audit. The management is responsible for ensuring that the cloud service provider meets the contractual obligations and service level agreements, as well as the security and compliance requirements of the community cloud. The auditor should also communicate with the cloud service provider and other relevant parties, such as regulators or customers, as appropriate, but the final report should be addressed to the management of the organization being audited. Reference: ISACA Cloud Auditing Knowledge Certificate Study Guide, page 17

One possible reason why the results of third-party audits and certification should be relied on when analyzing and assessing the cybersecurity risks in the cloud is to contrast the risk generated by the loss of control. When an organization moves its data and processes to the cloud, it inevitably loses some degree of control over its security and compliance posture, as it depends on the cloud service provider (CSP) to implement and maintain adequate security measures and controls1 This loss of control can increase the organization's exposure to various cybersecurity risks, such as data breaches, unauthorized access, denial of service, malware infection, etc2 To mitigate these risks, the organization needs to have a clear understanding of the security and compliance level of the CSP, as well as the shared responsibility model that defines the roles and responsibilities of both parties3 Third-party audits and certification can provide some level of assurance that the CSP meets certain standards and requirements related to security and compliance, such as ISO/IEC 27001, CSA STAR, SOC 2, etc. These audits and certification can also help the organization compare and contrast the security posture of different CSPs in the market, as well as identify any gaps or weaknesses that need to be addressed or compensated.
Therefore, relying on the results of third-party audits and certification can help the organization contrast the risk generated by the loss of control in the cloud, and make informed decisions about selecting and managing its cloud services.