Password sharing software as part of your ISO 27001 toolkit

ISO 27001 certification signals that your organization takes information security management seriously. Achieving and maintaining that certification requires demonstrating control across a wide range of information security practices — including how you handle credentials and passwords when they need to be shared.

Password sharing software isn't specifically mandated by ISO 27001, but it directly supports several controls that are. Understanding where it fits in your control framework helps you make the case for its adoption and ensures you're using it in a way that contributes to your audit evidence.

Relevant ISO 27001 controls

ISO 27001 (2022 edition) includes several controls that relate directly to credential management and information transfer:

A.5.17 — Authentication information. This control requires that the management of authentication information — including passwords — follows a defined process. Specifically, it addresses how authentication information is communicated and what happens when it needs to change. Secure, one-time transmission of credentials is a direct implementation of this control.

A.8.11 — Data masking. Protecting sensitive data from unauthorized access during transmission is part of the data masking concept. Using a tool that encrypts credentials and delivers them via a one-time link supports this control.

A.5.14 — Information transfer. This control requires that information transferred inside or outside the organization follows rules, procedures, and agreements that protect it. An ad-hoc approach to credential sharing — emailing passwords, posting them in chat — is difficult to defend against this control. A defined process using a dedicated tool is far more auditable.

A.8.2 — Privileged access rights. The management of privileged accounts includes controlling how privileged credentials are provisioned and shared. Using a dedicated tool with audit capability supports demonstrating appropriate controls around privileged access.

What auditors look for

ISO 27001 auditors assess whether your controls are documented, implemented, and monitored. For credential sharing, that means:

• A defined process for how credentials are shared (documented in policy or procedure)
• Evidence that the process is followed (audit logs, tool records, or process adherence evidence)
• Controls that reduce the risk of unauthorized credential exposure (encryption, one-time access, expiry)

A tool like PassTransfer supports all three:

• It provides a clear, consistent process
• Access logs show when links were created and accessed
• Encryption, one-time access, and configurable expiry are built into the product

Building credential sharing into your ISMS

Your Information Security Management System documentation should include a procedure for credential sharing. It doesn't need to be long, but it should specify:

• Approved tools for sharing credentials
• Prohibited methods (plain text email, unencrypted chat)
• Expiry requirements for shared credentials
• Documentation requirements (who shared what, when)

Reference your chosen tool in this procedure. When an auditor asks how you comply with A.5.17 or A.5.14, you can point to the procedure and demonstrate the tool that implements it.

Beyond compliance: the security benefit

ISO 27001 is ultimately about reducing real risk, not just passing audits. The security benefit of secure credential sharing goes beyond checkbox compliance: it reduces the probability and potential impact of credential compromise.

Plain-text credentials in email threads are a known attack vector. Credentials shared via secure one-time links eliminate this exposure. Even if an email containing a PassTransfer link is intercepted, there's nothing useful in it — the credential was already retrieved and the link is inactive.

For organizations pursuing or maintaining ISO 27001 certification, adopting a dedicated credential sharing tool is a relatively low-effort control that has genuine security value, generates useful audit evidence, and is easy to explain to auditors. It's a sensible addition to any information security toolkit.