10/08/2026
You can secure every system your team owns and still inherit a risk you did not create.
Modern organizations rarely build or operate every layer of their technology themselves. They rely on commercial software, SaaS and cloud platforms, open-source libraries, APIs, system integrators, and other third-party services to run the business.
That interconnectedness creates capability, but it also changes where security risk can come from.
A vulnerable library buried several layers inside an application can become your vulnerability. A compromised vendor account can become an access path into your environment. An integration with excessive permissions can expose data or systems. A third-party application with weak security practices can introduce risk even when your own controls are working as intended.
So, asking, “Are our systems secure?” only gets you part of the answer.
Organizations also need visibility into what those systems depend on. Which software components and third parties are connected to critical operations? What access do they have? Who is responsible for patches and vulnerabilities? How are updates handled? If a provider or component is compromised or becomes unavailable, what else does it affect?
Those questions cannot live only in a procurement questionnaire. The dependencies continue to change after implementation through software updates, new integrations, permission changes, vendor relationships, and components added further down the supply chain.
Software supply chain security means understanding that dependency chain and managing the risk that travels through it.
The security boundary now follows the technology and services the organization depends on, including the pieces it does not own or directly control.