Automated Penetration Testing for Fast-Moving Teams
Intruder continuously tests your infrastructure, web apps, and APIs for the vulnerabilities that matter most - giving you always-on coverage, not just a point-in-time report.
Join 3,000+ companies securing their attack surface with Intruder




























































Results in hours, not weeks
When new vulnerabilities are announced, Intruder checks your systems automatically - so you know your exposure before exploits spread. When new vulnerabilities are announced.
Stay ahead of emerging threats
When new vulnerabilities are announced, Intruder checks your systems automatically - so you know your exposure before exploits spread. When new vulnerabilities are announced, Intruder checks.
Always-on coverage
When new vulnerabilities are announced, Intruder checks your systems automatically - so you know your exposure before exploits spread. When new vulnerabilities are

Automated pentesting, without the wait
Know if you'd pass an audit before the auditor asks
Intruder checks for the issues auditors care about - exposed services, missing encryption, unpatched software - and generates compliance-ready reports for SOC 2, ISO 27001, or HIPAA without manual evidence gathering.
See What a pen tester sees, every day
Intruder covers many of the same issues found in manual pen tests - injection flaws, misconfigurations, authentication weaknesses - and re-tests automatically as your environment changes, so findings stay current, not stale.
From finding to fixing, without the back and forth
Intruder integrates with Jira, GitHub, GitLab, and Slack to route findings to the right team automatically. GregAI triages issues, explains root causes, and drafts remediation notes, so fixes happen faster without chasing people for updates.



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
DAST
Secure web apps
Risk Based Prioritization
No more alert fatigue
Cyber Hygiene Reporting
Demonstrate progress
Emerging Threat Detection
Check and act fast
Asset Discovery
Reveal unknown targets
Secrets Detection
Prevent leaked credentials
Website Security
140k+ checks
Container Image Scanning
Automated image discovery
API Security
Test your APIs
Compliance
SOC 2, ISO, HIPAA, DORA
Internal Scanning
Secure employee devices
Security that works for the 99%. Pricing that does too.
Free
Pro
Sign up for your free 14-day trial
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.

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