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Cybersecurity Glossary

Attack Surface

An attack surface is the sum of an organization’s attacker-exposed IT assets, whether these assets are secure or vulnerable, known or unknown, in active use or not and regardless of IT/security team is aware of them.

The attack surface changes continuously over time, and includes assets that are on-premises, in the cloud, and in subsidiary networks as well as those in third-party or partner environments.

See Also
Platform > Products >
Attack Surface Management

Scalable, continuous, and comprehensive testing for all external assets, all the time.

Resources > Learning Center >
Understanding Attack Surface Management

The definitive guide to attack surface management. Learn everything you need to know to reduce your cyber security risk with attack surface management.