A security audit is a systematic review of an organization’s systems, processes, and practices aimed at identifying vulnerabilities, assessing risks, and ensuring compliance with security standards. It verifies that the measures in place are effective in protecting sensitive data against threats such as ransomware, doxware, backdoors, man-in-the-middle attacks, whaling, and other spyware, and that the organization meets legal and regulatory requirements.

Security audits are essential for obtaining and maintaining HDS and ISO 27001 certifications, demonstrating the company’s seriousness and rigor in managing data and implementing security procedures.

How a security audit works

A security audit follows a structured process. It begins with an analysis of systems and procedures, followed by an assessment of risks and vulnerabilities. Auditors review security policies, system configuration, access controls, and protective measures against attacks, including denial-of-service (DDoS) attacks and other intrusions.

During the audit, auditors identify nonconformities, which may be minor or major. A major nonconformity means, in practical terms, that the organization is unable to meet one of the standard’s requirements, which can directly jeopardize certification. A minor nonconformity, on the other hand, means that the requirement is broadly met, but with some deviations: an internal procedure not followed, a requirement only partially addressed, or an improvement needed to cover the full scope required by the standard. In all cases, each nonconformity leads to a specific action plan aimed at correcting the deviations and strengthening security over the long term.

The goal is twofold: preventing security incidents and ensuring compliance with certifications and regulations. Audits are carried out at regular intervals, especially when new tools are added, when new sites or services are used, or to meet the requirements of certifications such as HDS and ISO 27001.

Types of security audits

Security audits fall into several categories, each with a specific role:

  • Technical compliance audit: Includes penetration tests (pentests), vulnerability analysis, and verification that systems meet technical and regulatory standards. Auditors then detect critical or minor deviations and propose corrective measures.
  • Internal audit: Conducted by internal managers or independent providers, it verifies that internal procedures are properly documented and applied. This type of audit makes it possible to identify internal nonconformities before external auditors step in.
  • Surveillance audit by external auditors: Carried out regularly by third parties, it checks the ongoing compliance of systems and processes with legal requirements and security standards. It highlights minor or major deviations in how procedures are actually applied.
  • Recertification audit: Performed by external auditors when a certification is renewed, it confirms that all procedures are documented and followed in practice, and that the organization maintains a consistent level of security. Any nonconformities identified must be corrected to keep the certification.

Outcomes and benefits of a security audit

Conducting regular security audits offers several benefits:

  • Proactive identification of vulnerabilities: Risks are detected before attackers can exploit them through ransomware, doxware, or other threats.
  • Increased trust: Audits show clients and partners that data is protected and procedures are followed, demonstrating the organization’s seriousness and rigor.
  • Regulatory compliance and certifications: Maintaining HDS and ISO 27001 certifications, which are essential for companies handling sensitive data.
  • Continuous improvement: Correcting minor and major nonconformities strengthens processes and reduces exposure to cyberthreats.


Prevention and best practices

To get the most out of a security audit, it is recommended to:

  • Maintain complete documentation of all procedures and configurations.
  • Conduct regular internal audits to identify areas for improvement before external auditors step in.
  • Train teams in security best practices and internal policies.
  • Implement continuous monitoring tools to detect intrusion attempts, including Zero Trust mechanisms and intrusion detection systems to counter man-in-the-middle, backdoor, or whaling attacks.
  • Regularly test data restoration to ensure resilience in the face of incidents.

 

Conclusion

A security audit is a key element in protecting IT systems and ensuring regulatory compliance. At Kiwi Backup, regular audits are carried out whenever a tool is added or a new service is used, to maintain HDS and ISO 27001 certifications. These audits make it possible to identify and correct minor nonconformities, covering all technical and organizational aspects, and demonstrate seriousness and rigor in data management.

Investing in regular, rigorous security audits, combined with reliable backup and strong security practices, is essential to protect against ransomware, doxware, spyware, and other advanced threats, while demonstrating a clear commitment to security and compliance.

Implementing an automated, secure backup solution remains a key recommendation of any security audit today, to limit the impact of a cyberattack and strengthen infrastructure resilience.