Attack Surface Management

Expanse’s global Internet collection and attribution platform empowers CISOs to continuously discover, evaluate, and mitigate their external attack surface.

Press Release

Palo Alto Networks Announces Intent to Acquire Expanse

The Expanse platform will enrich the Cortex product suite with a complete view of the enterprise attack surface.

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New Research

22% of Fortune 500 Companies Have Exposed VPNs

On a single day in September 2020, our research team found that 22% of Fortune 500 companies had Virtual Private Network devices exposed on the public Internet.

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How It Works


Expanse indexes every system and service on the global Internet. Our proprietary attribution engine then matches your organization’s Internet assets back to you.


Expanse continuously monitors your global Internet attack surface. We assess and prioritize risks to make it easier for security professionals to take action on the highest-consequence items.


Expanse works with customers to mitigate risks posed by exposed systems and services. Our platform includes user-friendly workflows, integrations, and cybersecurity experts on call.

We are an enterprise software company and the leader in Attack Surface Management. We build a system of record that is the authoritative source for an organization’s global Internet assets.

Protecting the World's Most Important Organizations

Why CISOs Choose Expanse

Industry-Leading Discovery

Expanse provides the most complete inventory of your Internet assets by discovering Internet-exposed systems and services that no other solution can. Our data have extremely low false-positive and false-negative rates. With continuous and accurate discovery, you can rest easy knowing you have true visibility into your full Internet attack surface.

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Evaluate Risk in Real Time

Your network is constantly changing. That means your attack surface is, too. Expanse helps you continuously monitor for exposed assets and indicators of compromise that could pose a risk to your organization.

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Seamless Integrations

Security leaders often manage dozens or even hundreds of tools. Expanse adds value to your existing tech stack by providing a system of record for your Internet assets that integrates with your preferred security solutions.

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Born from the Defense Advanced Research Projects Agency (DARPA), we are the world’s ultimate Zero to One shop. Our team is always working on the future. Join us and make the next technology leap at Expanse.
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Ready to Get Started?

Speak with an expert to learn more about how Expanse can help you automatically manage your attack surface and reduce your global Internet risk.

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