Dzone iconDzoneSep 21, 2026

Your Application Has an Unindexed Attack Surface. Do You Know What’s in It?

Security teams usually describe an application through the assets they know about. This includes the production domain, documented APIs, the services currently in use, and the repositories connected to the latest release.

Your Application Has an Unindexed Attack Surface. Do You Know What’s in It?

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Useful takeaways from this story.

Security teams usually describe an application through the assets they know about.

Other forgotten parts of the application can surface through DNS records, certificate data, or information left in client-side code.

This includes the production domain, documented APIs, the services currently in use, and the repositories connected to the latest release.

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The useful part

Security teams usually describe an application through the assets they know about. This includes the production domain, documented APIs, the services currently in use, and the repositories connected to the latest release. A staging environment created for an old release may still be online months later, alongside an API version that was supposed to be retired.

How it works

  • Other forgotten parts of the application can surface through DNS records, certificate data, or information left in client-side code.

Details worth keeping

Applications leave things behind as they change.

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