Detect and secure new assets and shadow IT

Find new assets that never made it onto your asset register and integrate them into your security program without lifting a finger.

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Join 3,000+ companies securing their attack surface with Intruder

Complete attack surface visibility

Manual asset inventories are only as reliable as the people responsible for updating them. Automated monitoring catches new assets and services as soon as they pop up.

Keep up with every deploy

Engineering teams are moving faster than ever, security needs to keep up. Intruder discovers APIs, logins, subdomains, and cloud services you don’t know exist.

Scale security with confidence

New domains, acquisitions, expanding cloud footprint - as your business grows, your attack surface grows with it. Intruder keeps your coverage from falling behind.

Secure your external perimeter

Connect your environment

Set your initial scope by connecting your cloud accounts or adding your IP addresses and domains. Intruder takes it from here.

Auto detect unknown assets

Intruder automatically discovers subdomains, related domains, login pages, and APIs across your estate. Cloud Sync continuously checks your cloud accounts and adds new services to the platform.

Continuously scan

Newly discovered assets are automatically added to your regular and proactive scans without lifting a finger. Prefer to review what's been found before scanning? You can do that too.

Find what's exposed, fix what matters, and stay ahead of new threats

External Scanning

Infrastructure Security

Attack Surface Monitoring

Respond to changes

CSPM

Daily cloud config checks

Asset Discovery

Reveal unknown targets

DAST

Secure web apps

Risk Based Prioritization

No more alert fatigue

Cyber Hygiene Reporting

Demonstrate progress

Emerging Threat Detection

Check and act fast

Container Image Scanning

Automated image discovery

Secrets Detection

Prevent leaked credentials

Website Security

140k+ checks

API Security

Test your APIs

Compliance

SOC 2, ISO, HIPAA, DORA

Internal Scanning

Secure employee devices

Our customers love Intruder

Emerging Threat Scans are a game changer. They let us  stay on top of everything, without hours spent checking  sources or reconfiguring platforms. Having full visibility  into what's externally exposed has massively increased our confidence.

Pawel Sieradzki
Global IT Director, Brainlabs

If you leave room for doubt in the sales process, you  can derail the entire deal. I wanted security to be  something we look forward to prospects asking about. Now  the security review is one of the fastest parts of the  deal stage.

Zach Rattner
CTO & Co-founder, Yembo

I want to take us out of the equation completely from  a process perspective. We're not the nagging manager  anymore, we just monitor and make sure things are  progressing. When my CIO asks where we stand, I can tell  him straight away: no highs, no criticals.

Sunil Patel
ISO, River Island

One platform. Continuous security.

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What is shadow IT and why does it matter for security?

Shadow IT refers to any infrastructure, services, or cloud resources running without the knowledge of your security team, like forgotten subdomains, unmanaged cloud instances, and services spun up outside standard processes. These assets go unscanned and unpatched, making them easy targets. Intruder discovers shadow IT automatically so it can be brought into your vulnerability management workflow.

What types of assets does Intruder discover?

Intruder discovers subdomains, related domains, login pages, APIs, and cloud services across your attack surface. Everything appears on the discovery page for you to review and add as targets for external vulnerability scanning.

How does cloud asset discovery work?

Connect your AWS, Azure, or Google Cloud account and Intruder automatically detects new services as they're exposed. You can set rules to control what's imported and enable auto-scanning so new targets are scanned as soon as they appear. See how to connect your cloud accounts.

How often does Intruder check for new assets?

Cloud targets sync every two hours with your connected accounts. Subdomain discovery runs weekly across all your targets. Related domain checks run whenever you add a new target. Any of these can surface assets you didn't know were exposed.