Executives should know that most of the software a company ships was written by someone else: open source libraries, vendor products, and build tools. Supply chain risk is the chance that a flaw or tampering in any of those parts reaches your customers. Five ideas cover most of what a leader needs.
1. You ship more code than you wrote
Modern applications are assembled. Engineers pull in libraries, and those libraries pull in more libraries. The list of everything included is called a dependency graph, and it usually runs far deeper than anyone sketches on a whiteboard. GitHub describes its dependency graph as a summary built from a repository's manifest and lock files, showing what the project depends on, including versions, licenses and known vulnerabilities. The point for a leader: if nobody can produce that list quickly, nobody can answer "are we affected?" quickly.
2. The weak point can be anywhere between code and customer
The SLSA project explains that software can be compromised at many points between source code and deployment, and that scanning source alone is not enough because code can change during building and distribution. In plain terms, the ingredients, the kitchen and the delivery van all matter.
3. A list of parts is the starting tool
A software bill of materials, or SBOM, is described by CISA as a nested inventory of software components. It does not fix anything by itself. It makes the question "do we use this part?" answerable in minutes rather than days.
4. Not every alert is a fire
Scanners report many findings. Some flaws sit in code that is never run. Some have no known exploitation. Leaders should expect their teams to rank findings by real exposure, not by raw count. See the reachability explainer for how that works.
5. Vendors are part of your supply chain
Your suppliers have suppliers. Ask vendors for evidence, not adjectives: how they track components, how fast they notify you, and what they can show on request.
Five questions to take to engineering
Where is our current inventory of components, and how old is it? How long would it take to learn whether we use a newly announced flawed library? Who decides what we do about a finding? Which vendor products sit in our critical paths? What do we show a customer who asks for proof?
Where Safeguard fits
Safeguard produces SBOMs and scans dependencies, and its reachability analysis shows which findings your code actually uses. You can run a free scan on a repository to see an inventory for yourself.
Try it yourself
Open the inventory view and look for how many components appear beyond the ones a developer chose directly.
Click through it at your own pace, or open it full screen.
Quick check
Is supply chain risk only about open source?
No. It includes vendor software, build systems, update channels and the people with access to them. Open source is the largest visible part because it is so widely reused.
Do we need an SBOM to start?
It is one of the most practical starting points because it gives you an inventory. You still need a way to match that inventory against new flaws and decide what to fix.
Sources
Last reviewed: 19 October 2026.
