ISO 27001 Annex A evidence
Continuous offensive security for the enterprise.
ISO/IEC 27001:2022, Annex A controls 5.19 to 5.23
4 provisions of ISO 27001 Annex A reach the vendors you rely on. For each, the public evidence from Antigen that may support it, with its date and source.
Processes are defined and implemented to manage the information security risks associated with the use of suppliers’ products or services.
Independent security assurance
Available on requestA current SOC 2 report or ISO/IEC 27001 certificate is the usual evidence that a supplier operates appropriate security measures.
Relevant information security requirements are established and agreed with each supplier, based on the type of relationship.
Data processing agreement
No public evidenceThe DPA is where processing instructions, confidentiality, security, sub-processing and audit rights are written down.
Processes are defined to manage the information security risks associated with the ICT products and services supply chain.
Published subprocessor list
Evidence foundA current list of subprocessors, with purpose and location, is how a customer knows who else touches its data.
Processes for acquiring, using, managing and exiting cloud services are established in line with the organisation’s information security requirements.
Cloud security assurance
No public evidenceISO/IEC 27017 and 27018 and the CSA STAR registry cover controls specific to cloud services.
Independent security assurance
Available on requestA current SOC 2 report or ISO/IEC 27001 certificate is the usual evidence that a supplier operates appropriate security measures.
CertReports does not decide that. It shows the public evidence that may support each ISO 27001 Annex A requirement that reaches vendors: evidence was found or is available on request for information security in supplier relationships (Annex A 5.19), the ict supply chain (Annex A 5.21), and nothing public was found for security within supplier agreements.
Request independent security assurance, data processing agreement, and confirm each is current.
Solomon Amos · 1 Sep 2026 · 10 min read
CertReports Research · 18 Sep 2026 · 12 min read
This maps third-party obligations to the vendor evidence that may support them. It is not legal advice and never a statement that a vendor or its customers comply; confirm scope and sufficiency with your counsel or auditor. “No public evidence” means nothing public was found at the last check. Citations link to the official text.
Requirements reviewed 21 Sep 2026. The vendor lists the evidence on its trust centre behind a request or NDA; ask for it.