--- title: Third-Party & Supply-Chain Cyber Risk Quantification description: Quantify your third-party and supply-chain cyber risks with CyQuantiFi, revealing correlated exposures and their financial impact for informed decision-making. --- [Skip to content](https://www.cyquantifi.com/third-party-supply-chain-cyber-risk-quantification#main-content) [![cyquantifi-horizontal-light](https://www.cyquantifi.com/hubfs/cyquantifi-horizontal-light.svg)Homepage](https://www.cyquantifi.com?hsLang=en) - [Home](https://www.cyquantifi.com?hsLang=en) - [Insights](https://www.cyquantifi.com/blog?hsLang=en) - [Product](https://www.cyquantifi.com/product?hsLang=en) - [Cyber Risk Quantification](https://www.cyquantifi.com/transform-cyber-risk-into-financial-insights-actionable-threat-modeling-cyquantifi?hsLang=en) - [Packet Capture Appliance](https://www.cyquantifi.com/cyquantifi-capture-appliance-dollarised-risk-on-site?hsLang=en) - Services - [Supply Chain Risk Assessment](https://www.cyquantifi.com/third-party-supply-chain-cyber-risk-quantification) - [IRAP and E8](https://www.cyquantifi.com/irap-assessments-essential-eight-uplift?hsLang=en) - [SOCI CIRMP](https://www.cyquantifi.com/cyber-risk-quantification-for-soci-cirmp-compliance?hsLang=en) - CyQuantiFi vs - [Avertro](https://www.cyquantifi.com/cyquantifi-vs-avertro?hsLang=en) - [Safe Security](https://www.cyquantifi.com/cyquantifi-vs-safe-security?hsLang=en) - [CYE](https://www.cyquantifi.com/cyquantifi-vs-cye?hsLang=en) - [6clicks](https://www.cyquantifi.com/cyquantifi-vs-6clicks?hsLang=en) - [Cybercube](https://www.cyquantifi.com/cyquantifi-vs-cybercube?hsLang=en) - [About](https://www.cyquantifi.com/about?hsLang=en) - [Contact Us](https://www.cyquantifi.com/contact-us?hsLang=en) - [Careers](https://www.cyquantifi.com/careers?hsLang=en) [Book a Demo](https://www.cyquantifi.com/demo?hsLang=en) - [Home](https://www.cyquantifi.com?hsLang=en) - [Insights](https://www.cyquantifi.com/blog?hsLang=en) - [Product](https://www.cyquantifi.com/product?hsLang=en) - [Cyber Risk Quantification](https://www.cyquantifi.com/transform-cyber-risk-into-financial-insights-actionable-threat-modeling-cyquantifi?hsLang=en) - [Packet Capture Appliance](https://www.cyquantifi.com/cyquantifi-capture-appliance-dollarised-risk-on-site?hsLang=en) - Services - [Supply Chain Risk Assessment](https://www.cyquantifi.com/third-party-supply-chain-cyber-risk-quantification) - [IRAP and E8](https://www.cyquantifi.com/irap-assessments-essential-eight-uplift?hsLang=en) - [SOCI CIRMP](https://www.cyquantifi.com/cyber-risk-quantification-for-soci-cirmp-compliance?hsLang=en) - CyQuantiFi vs - [Avertro](https://www.cyquantifi.com/cyquantifi-vs-avertro?hsLang=en) - [Safe Security](https://www.cyquantifi.com/cyquantifi-vs-safe-security?hsLang=en) - [CYE](https://www.cyquantifi.com/cyquantifi-vs-cye?hsLang=en) - [6clicks](https://www.cyquantifi.com/cyquantifi-vs-6clicks?hsLang=en) - [Cybercube](https://www.cyquantifi.com/cyquantifi-vs-cybercube?hsLang=en) - [About](https://www.cyquantifi.com/about?hsLang=en) - [Contact Us](https://www.cyquantifi.com/contact-us?hsLang=en) - [Careers](https://www.cyquantifi.com/careers?hsLang=en) [Book a Demo](https://www.cyquantifi.com/demo?hsLang=en) # Third-Party & Supply-Chain Cyber Risk Quantification Your biggest exposure often isn't in your network — it's in your vendors'. CyQuantiFi puts a dollar figure on third-party and supply-chain cyber risk, and reveals the correlated exposure that traditional registers miss: the risks that all move together the moment a shared dependency fails. [Book a scoping call →](https://cyquantifi.com/demo?hsLang=en) --- ## The risk register lies about your vendors Most third-party risk programs produce a questionnaire score and a colour. Neither tells a board what a vendor failure is worth, and neither captures the real danger: **correlation**. When several "independent" risks quietly depend on the same supplier — a telco, a cloud provider, an identity platform, a payments processor — they don't fail one at a time. They fail together. **A live example.** When a single telecommunications fault took down a major Australian network, it didn't just drop phone calls — it stopped trains, froze card payments and touched emergency services in the same morning. Three "separate" risks, one shared dependency, all firing at once. A heatmap rated them as three unrelated amber cells. The dollars told a very different story. ## The Threat Tide Method: modelling shared weather CyQuantiFi's **Threat Tide Method** quantifies third-party and supply-chain risk the way it actually behaves. We compose your attack graph with your vendors' — without copying their data — and simulate loss across the whole picture. Crucially, we model the *shared weather*: when the threat environment heats up, linked risks surge together, and the worst-case tail gets fatter. The result is an honest worst case, not an artificially calm one — and it's backed by patent-filed technology. Shared weather Correlation, modelled Linked risks move together — we simulate that instead of pretending they're independent. Fatter tail Honest worst case The high-loss end of the distribution reflects reality, not wishful thinking. $ per vendor Dollar exposure Each supplier's contribution to your Annual Loss Expectancy, ranked. ## How it works 1 #### Map your critical suppliers We identify the vendors and dependencies that more than one part of your business relies on — the concentration points that create correlation. 2 #### Bridge the graphs Your attack graph links to vendor threat models through a secure boundary — their exposure is referenced, not copied — so we can simulate risk across the whole supply chain. 3 #### Simulate the correlation A FAIR-aligned Monte Carlo simulation runs across the composed graph with shared-weather correlation, producing a loss distribution with an honest tail. 4 #### Rank and act You get each vendor's dollar contribution to your risk, the concentration points to diversify, and the control moves that reduce exposure most per dollar. ## Built for CPS 234 and SOCI supply-chain obligations APRA CPS 234 requires regulated entities to manage the information-security capability of third parties that handle their information assets. SOCI's all-hazards CIRMP framework puts supply-chain risk squarely in scope. A dollar-based, correlation-aware estimate is the cleanest evidence you can put in front of a regulator — and a far stronger board conversation than a vendor questionnaire score. ## Who it's for Risk and security leaders at APRA-regulated financial institutions, SOCI-regulated critical infrastructure operators, and any organisation with concentrated vendor dependencies who needs to move third-party risk from a questionnaire colour to a defensible dollar figure. --- ## Frequently asked questions ### What is third-party cyber risk quantification? It's expressing the cyber risk your vendors and suppliers create for you as a dollar figure — an Annual Loss Expectancy — instead of a questionnaire score or a colour. CyQuantiFi does this by composing your attack graph with your vendors' and simulating loss across the whole supply chain. ### Why does correlation matter in supply-chain risk? Because shared dependencies mean linked risks fail together, not one at a time. If you model each vendor risk independently, you systematically understate your worst case. The Threat Tide Method models the correlation — the shared weather — so the tail of your loss distribution reflects reality. ### Do you need access to our vendors' systems? No. Vendor exposure is referenced through a secure boundary, not copied. We compose the graphs for simulation without moving your suppliers' data into your environment. ### How is this different from a security ratings service? External ratings score a vendor's posture from the outside. They don't tell you what a vendor failure would cost *you*, and they don't model correlation across your supply chain. CyQuantiFi produces a dollar exposure specific to your business, with the correlated worst case included. ### See what your supply chain is really worth in risk Run a Threat Tide analysis across your vendor graph and your own. [Book a Demo →](https://cyquantifi.com/demo?hsLang=en) [See the Platform →](https://cyquantifi.com/product?hsLang=en) ### Related services - [Cyber risk quantification for SOCI & CIRMP](https://cyquantifi.com/services/cyber-risk-quantification-soci-cirmp?hsLang=en) — board-ready dollar figures for your CIRMP attestation. - [IRAP assessments & Essential Eight uplift](https://cyquantifi.com/services/irap-assessment-essential-eight?hsLang=en) — independent assessment against the ISM and Essential Eight. *This page describes CyQuantiFi's third-party and supply-chain cyber risk quantification service. It is general information, not legal or compliance advice; regulated entities remain accountable for their own third-party risk obligations.* [![cyquantifi-horizontal-dark](https://www.cyquantifi.com/hubfs/cyquantifi-horizontal-dark.svg "cyquantifi-horizontal-dark")](https://www.cyquantifi.com?hsLang=en) --- [Privacy Policy](https://www.cyquantifi.com/privacy-policy?hsLang=en) · [Legal](https://www.cyquantifi.com/terms-of-use?hsLang=en)· [Patents Pending](https://www.cyquantifi.com/patents?hsLang=en) · CyQuantiFi Pty Ltd © 2026. All rights reserved. [☎️ 02 5747 4163](tel:+61257474163) ABN: 67 697 329 105