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Third-Party / Supply Chain Risk

Also known as: Third-party risk, Supply chain risk, Vendor risk

Third-party (supply chain) risk is the security exposure an organisation inherits from its vendors, partners, and suppliers. Infostealer infections at a third party can leak credentials to the connected organisation's systems, turning a partner's breach into yours.

What is third-party risk?

Organisations rely on a web of vendors and partners who often have access to their systems and data. Third-party risk is the chance that a security failure at one of those parties harms your organisation. Infostealers make this acute: a compromised contractor's machine can expose credentials to your VPN, SaaS, or portals.

How infostealers amplify supply chain risk

A single stealer infection on a supplier's device can hand attackers working credentials for systems shared with your organisation. Because those credentials are legitimate, the resulting access is hard to distinguish from normal vendor activity.

How VantaPrism Tracks Third-Party / Supply Chain Risk

VantaPrism lets organisations monitor not only their own domains but also their vendors' for infostealer exposure, providing early warning when a partner's compromise could become a path into their environment.

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Frequently Asked Questions

How do infostealers create supply chain risk?

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An infostealer on a vendor or contractor's machine can capture credentials for systems shared with your organisation, giving attackers legitimate access that is hard to detect.
← All Glossary Terms Last reviewed: June 2026