Close your blind spots with automated Shadow IT discovery
Intruder surfaces unknown subdomains, orphaned cloud services, and exposed infrastructure that sit outside your security program, then alerts you and scans them automatically so nothing goes unmonitored.
Thousands of happy customers worldwide
Gain peace of mind with continuous Shadow IT monitoring
Every new port or live service is a potential entry point. Intruder monitors continuously, so when something new appears, a vulnerability scan starts automatically. No manual reviews or waiting for the next scheduled check.
Surface the cloud assets the devs never told you about
Engineering moves faster than security spreadsheets. Intruder connects directly to AWS, Azure, and Google Cloud, syncing every two hours to identify new targets. Whether it’s a new VM with an external IP or a fresh API gateway, Intruder adds it to your inventory and begins scanning immediately.
Find your forgotten subdomains before attackers do
Attackers look for what you’ve forgotten: old dev environments, acquired domains, and services registered outside standard processes. Using passive DNS data and certificate transparency logs, Intruder discovers these "hidden" assets daily. Gain visibility into infrastructure that exists outside your defined cloud accounts or IP ranges.
Shadow IT discovery is just the start
Finding unknown assets is only useful if you know what to do with them. Intruder doesn't just surface Shadow IT, it feeds it straight into a continuous vulnerability management workflow. That means every discovered asset gets scanned, prioritized by real-world exploit likelihood, and tracked through to remediation with integrations for Jira, Slack, and GitHub.
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Shadow IT refers to any hardware, software, or cloud service used within an organization without the knowledge or approval of the IT or security team. In the context of cybersecurity, Shadow IT typically includes forgotten subdomains, unmanaged cloud instances, orphaned services from past projects, and infrastructure deployed outside standard provisioning processes. These assets are invisible to your security program, which means they go unscanned, unpatched, and unmonitored.
Shadow IT discovery is the process of identifying unknown or unmanaged assets across your organization's attack surface. This includes finding subdomains, cloud resources, APIs, and services that exist outside your documented inventory. Effective Shadow IT discovery combines multiple techniques: passive DNS analysis, certificate transparency monitoring, cloud account integration, and continuous network scanning.
Intruder uses several complementary methods: cloud sync pulls in new assets from AWS, Azure, and Google Cloud automatically; continuous network scanning detects new services on your existing targets; and for Enterprise customers, passive DNS data, certificate transparency logs, and DNS reconnaissance discover unknown subdomains daily. Any new asset found can automatically trigger a vulnerability scan.
SaaS Shadow IT refers to unauthorized applications and cloud services adopted by employees without IT approval, such as file-sharing tools, project management apps, or communication platforms. Infrastructure Shadow IT refers to unknown technical assets like forgotten subdomains, orphaned cloud instances, exposed APIs, and unmanaged servers that create exploitable entry points. Intruder focuses on infrastructure Shadow IT: the unknown assets across your perimeter and cloud accounts that attackers can find and exploit.
Cloud, Pro, and Enterprise plans include continuous network scanning and cloud sync for automatic asset discovery. Enterprise adds the full suite: weekly subdomain discovery, apex domain discovery, login page detection, and API detection. Essential plan customers can run on-demand scans to check for new services on defined targets.
