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Attack Surface Management

Continuous Internet Discovery and Complete Cloud Visibility

Discover Unknown Internet Assets

Reveal unknown, unmanaged assets

Maintain Comprehensive Inventory

Stay in control with a real-time record

Identify and Remediate Internet Risks

Address problems proactively

Hello, we are Censys

Censys was started as a research project at the University of Michigan by the creators of ZMap and inventors of fast Internet-wide scanning. Today, Censys, Inc. is led by a team of industry and academic security and networking leaders, and provides both best-in-class Internet data and Attack Surface Management.
Complexity is up, and visibility is down. By 2021, 50% of enterprises will unknowingly and mistakenly have some IaaS storage services, network segments, applications or APIs directly exposed to the public internet, up from 25% at YE18.


Censys continually discovers your Internet assets and monitors them as part of a comprehensive inventory, identifies egregious security issues, and prevents oversights from becoming vulnerabilities by ensuring that assets are protected by integrating with your existing security solutions.
“ I will never let go of this tool. It has saved us from multiple breaches. ”
- Major Financial Services Customer

What Will You Do With the Censys Attack Surface Management Platform?

Security Practitioners


Discover unknown, unmanaged assets and maintain complete visibility and continuous inventory via ticketing and notification integrations


Enable innovation and protect your organization without the risk of unknowns
Vulnerability Managers


See a comprehensive view of your attack surface, with automated discovery and monitoring through integrations with popular tools
Corpsec Managers


Discover unknown cloud accounts and infrastructure and protect your organization with verification of remediation
Cloud Security


Discover and resolve misconfigured & vulnerable cloud assets
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Featured Case Study

Censys Partners with the State of Indiana

Attack Surface Increases with Remote Workforce & Complex Cloud Migration
LSA was migrating some assets from an internal data center hosted by the executive branch to a new private cloud provider. On top of that, they also were preparing to move additional resources to AWS.

State of Indiana LSA Uses Censys to Monitor Assets from an Adversary’s Perspective

  • Ongoing Port Scanning to Mitigate Threats to External Servers
  • Cloud Visibility to Combat Configuration Mishaps
  • Certificate Management to Ensure Business Continuity
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“ We knew that our threat surface was increasing and we wanted to make sure we were using tools, specifically Censys [ASM], to understand what that threat surface looked like. ”
- Jeff Ford, LSA CISO

Join the Leader in Attack Surface Management

Explore our open roles, benefits, and perks!