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Whitepaper

Calculating Known and Unknown Risk: The Math Behind the Cyber Exposure Score

Learn how Tenable’s data science team prioritizes business-critical risks across the full cyberattack surface

Few security teams have the ability to thoroughly assess — let alone protect against — every vulnerability on every asset across their enterprise network. The name of the game in cybersecurity is prioritization — where to apply your limited resources to reduce the greatest amount of risk across your most critical assets.

The Cyber Exposure Score, a critical component of Tenable Lumin, provides an objective measurement of cyber risk for every asset across any digital platform, even for assets hidden from authenticated security scans. The score uses advanced machine learning, paired with one of the industry’s largest threat data lakes, to illuminate which exposures across your attack surface are most vulnerable to a business-impacting attack.

In this technical whitepaper, you’ll learn: 

  • Why predictive technologies are necessary to understand risk across your full attack surface
  • How the Cyber Exposure Score is calculated and each underlying quantity is derived
  • Which user controls and metrics within Tenable Lumin can help security teams align their resources with business-critical vulnerabilities

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tenable.io

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy.

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Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

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Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

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Tenable.io

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy.

Tenable.io BUY

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

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Try Tenable.io Web Application Scanning

Enjoy full access to our latest web application scanning offering designed for modern applications as part of the Tenable.io platform. Safely scan your entire online portfolio for vulnerabilities with a high degree of accuracy without heavy manual effort or disruption to critical web applications. Sign up now.

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Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

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Try Tenable.io Container Security

Enjoy full access to the only container security offering integrated into a vulnerability management platform. Monitor container images for vulnerabilities, malware and policy violations. Integrate with continuous integration and continuous deployment (CI/CD) systems to support DevOps practices, strengthen security and support enterprise policy compliance.

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Tenable.io Container Security seamlessly and securely enables DevOps processes by providing visibility into the security of container images – including vulnerabilities, malware and policy violations – through integration with the build process.

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Visualize and explore your Cyber Exposure, track risk reduction over time and benchmark against your peers with Tenable Lumin.

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Contact a Sales Representative to learn more about Tenable.cs Cloud Security and see how easy it is to onboard your cloud accounts and get visibility into both cloud misconfigurations and vulnerabilities within minutes.

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Built for the modern attack surface, Nessus Expert enables you to see more and protect your organization from vulnerabilities from IT to the cloud.

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Buy Nessus Expert

Built for the modern attack surface, Nessus Expert enables you to see more and protect your organization from vulnerabilities from IT to the cloud.

Select Your License

Buy a multi-year license and save.

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