Intruder for
Close the door to attackers
Find and fix weaknesses in your external perimeter before attackers can act with continuous external vulnerability scanning and automated pentesting.
Join 3,000+ companies securing their attack surface with Intruder
See what attackers see
Run over 140,000 checks against your internet-facing assets. Open ports, weak SSL, unpatched software, exposed services: if it's visible from the outside, Intruder finds it.
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Know if you’re exposed to emerging threats
When a new vulnerability drops, Emerging Threat Scans check your systems automatically. No waiting for your next scheduled scan.
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Separate real risks from noise
Prioritize issues based on exploit likelihood, severity and real-world threat intelligence. Integrate with workflow tools to fix issues fast.
Secure your external perimeter
Connect to your environment
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Connect your cloud accounts and add your domains, and IPs. Intruder automatically discovers internet-facing assets and starts scanning right away. No agents, no complex setup.
Scan continuously
Scans run automatically on a schedule you control. When a new vulnerability is disclosed, Intruder runs an automated Emerging Threat Scan to check your estate and alerts you with results, no manual trigger needed.
Prioritize and fix
Results are prioritized based on severity, exploitability and real-world threat intelligence. Each issue comes with step-by-step remediation guidance and integrates directly into Jira, GitHub, and your team's existing workflow so nothing gets lost in a spreadsheet.
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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
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One platform. Continuous security.
Yes, you can! Learn all about how to scan SPAs with Intruder here.
The first thing you need to do is add your website as a target by entering its IP address or url. You can then kick off your first scan in just a few clicks – it’s that simple!
Intruder’s website security scans check for web-layer security problems such as SQL injection and cross-site scripting, as well as other security misconfigurations. Read more about Intruder’s checks here.
Your internal systems can be just as enticing to hackers as your external network so it’s important to test your website for vulnerabilities there too.
When we talk about scanning the website internally, we’re actually talking about scanning the web server that the website is hosted on. Web servers are internet-facing, but any sensitive information connected to them (such as databases) will sit behind a firewall, to prevent them from being reached by unauthorized individuals.
If ‘stuff’ can’t be reached externally, then remote checks won’t work and so you’d need to run local checks. At Intruder, all local/internal checks are performed via an agent which you’d install on the server.
Internal vulnerability scanning also hunts through your website for missing patches and detects insecure versions of many thousands of software components and frameworks, including operating systems and network devices. Find out more about internal vulnerability scanning.
Intruder works with many platforms, including WordPress, Drupal, Joomla, Squarespace and more.
Choose our Essential or Cloud plan to externally scan your website. If you are looking at our internal vulnerability scanning capability, this is only available to our Pro and Enterprise customers. Visit our pricing page to learn more.
Buy any of our Essential or Pro plans that cover infrastructure licenses by default. Head to our pricing page for more information.