Supply-chain attacks compromise trusted vendors or dependencies, potentially reaching downstream systems; verify provenance and limit access before deployment.
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Background for this topic.
Supply chain is the network of suppliers, software developers, service providers, components, and processes used to build and deliver an organization’s products or services. In a security threat model, it extends the trust boundary beyond the organization: a compromised supplier account, build system, software dependency, update mechanism, or hardware component can introduce malicious code, expose credentials, or undermine systems used by many customers.
Effective protection starts with mapping critical suppliers, dependencies, data flows, and access, then applying risk-based due diligence and least-privilege, segmented access. For software, maintain an inventory such as a software bill of materials, verify signed artifacts and update provenance where feasible, and monitor dependencies for vulnerabilities or unexpected changes. Contracts and technical controls should support timely notification and investigation. Response plans should cover revoking supplier access, isolating affected versions or integrations, determining exposure, and coordinating remediation with the provider.
The software supply chain is a growing target, and organizations need to take special care to safeguard it.
A Chinese threat actor infiltrated several IT and security companies in a bring-your-own VS code, with an eye to carrying out a supply-chain-based espionage attack.