Proven Internal Security Testing Results
Our comprehensive internal penetration testing has helped organizations strengthen their network defenses and prevent insider threats.
Internal Vulnerabilities Found
Critical security gaps identified in network segmentation
Years Experience
Specialized internal network security testing
Days Average
Complete internal assessment duration
Client Satisfaction
Successful internal security improvements
500+
Internal Networks Tested
24/7
Expert Support Available
100%
Confidential & Secure Testing
Internal Network Assessment
Our internal penetration testing evaluates your network's ability to contain threats and prevent lateral movement once an attacker gains initial access.
Network Segmentation
Evaluate internal network segmentation and identify paths for lateral movement.
Common Attack Vectors:
- Weak network segmentation
- VLAN hopping
- Trust relationships
- Firewall bypasses
Data Access
Test access controls to sensitive data repositories and databases.
Common Attack Vectors:
- Excessive privileges
- Weak authentication
- Database misconfigurations
- File share permissions
Active Directory
Assessment of Active Directory security and privilege escalation opportunities.
Common Attack Vectors:
- Kerberoasting
- AS-REP roasting
- Golden/Silver tickets
- DCSync attacks
Internal Services
Testing of internal applications, services, and infrastructure components.
Common Attack Vectors:
- Unpatched services
- Default credentials
- Service misconfigurations
- Protocol weaknesses
Attack Scenarios
Compromised Workstation
Starting from a typical user workstation with standard domain user privileges
Testing Objectives:
- Privilege escalation
- Domain admin access
- Sensitive data access
- Persistence mechanisms
Guest Network Access
Beginning from guest WiFi or contractor network with limited access
Testing Objectives:
- Network enumeration
- Pivot to internal networks
- Service discovery
- Credential harvesting
Insider Threat Simulation
Testing what a malicious insider could access with their current privileges
Testing Objectives:
- Data exfiltration paths
- System compromise
- Privilege abuse
- Detection evasion
Interactive Network Security Calculator
Assess your internal network security risk level and get personalized recommendations for improvement.
Your Network Profile
Risk Assessment
Recommendations
About This Assessment
This calculator provides a preliminary internal network risk assessment based on common attack vectors. A professional internal penetration test will provide comprehensive analysis and actionable remediation steps.
Internal Testing Benefits
Strengthen your internal defenses and reduce the impact of security breaches through comprehensive internal penetration testing.
Lateral Movement Prevention
Identify and strengthen network segmentation to prevent attackers from moving freely through your network.
78% reduction in attack spread
Privilege Escalation Defense
Discover and remediate privilege escalation paths that could lead to domain compromise.
90% of critical privilege paths identified
Insider Threat Assessment
Understand what internal users can access and identify excessive permissions.
Average 45% reduction in excessive privileges
Critical Asset Protection
Ensure your most valuable data and systems are properly protected from internal threats.
100% of critical assets assessed
Incident Response Improvement
Enhance detection and response capabilities for internal security incidents.
60% faster threat detection
Security Maturity Growth
Systematically improve your internal security posture through targeted testing.
Continuous security improvement
Internal Testing Process
Our systematic approach to internal penetration testing follows industry best practices while minimizing disruption to your business operations.
Network Discovery
1-2 Days
Map the internal network topology and identify active systems and services.
Key Activities:
Vulnerability Assessment
2-3 Days
Identify vulnerabilities in internal systems and services.
Key Activities:
Exploitation & Lateral Movement
3-5 Days
Exploit vulnerabilities and attempt lateral movement through the network.
Key Activities:
Documentation & Reporting
2-3 Days
Document findings and provide detailed remediation guidance.
Key Activities:
Internal Testing Requirements
What we need to conduct effective internal penetration testing.
Network Access
- Physical network connection or VPN access
- Network diagrams and IP ranges
- VLAN and subnet information
Test Accounts
- Standard domain user account
- Guest or contractor-level access
- Specific privilege levels to test
Testing Schedule
- Business hours vs. after-hours testing
- Critical system maintenance windows
- Backup and recovery schedules
Documentation
- Network architecture documentation
- Critical system inventory
- Security control documentation
Client Success Stories
See how our internal penetration testing has helped organizations strengthen their network security and prevent insider threats.
Sarah Chen
CISO
"GuardsArm's internal penetration testing revealed critical network segmentation issues we never knew existed. Their thorough approach and actionable recommendations helped us prevent potential insider threats."
TechCorp Industries
Technology Industry
Key Improvement:
78% reduction in lateral movement vulnerabilities
Michael Rodriguez
IT Security Manager
"The internal testing identified privilege escalation paths that could have compromised patient data. The team's professionalism and detailed reporting exceeded our expectations."
Regional Medical Center
Healthcare Industry
Key Improvement:
Complete network segmentation overhaul
David Thompson
Network Administrator
"Outstanding internal security assessment. They found vulnerabilities in our Active Directory that our previous assessors missed. The remediation guidance was clear and practical."
Financial Services Inc.
Financial Industry
Key Improvement:
95% improvement in privilege management
Join Our Satisfied Clients
Ready to strengthen your internal network security? Let our experts help you identify and remediate vulnerabilities before they become threats.
Schedule Your Internal Network Assessment
Get a comprehensive evaluation of your internal network security. Our experts will assess your infrastructure and provide actionable recommendations to strengthen your defenses.
Frequently Asked Questions
Everything you need to know about internal penetration testing services and our methodology.
Internal penetration testing evaluates the security of your internal network infrastructure from the perspective of someone who has already gained access to your network. We simulate insider threats and assess how far an attacker could move laterally through your systems if they compromise an internal user account or gain physical access to your network.
Internal penetration tests typically take 7-10 business days, depending on the scope and complexity of your network. This includes network discovery (1-2 days), vulnerability assessment (2-3 days), exploitation and lateral movement testing (3-5 days), and comprehensive reporting (2-3 days). We provide daily updates throughout the process.
We need network access to your internal environment, typically through a physical connection, VPN access, or a dedicated testing VLAN. We also require standard user credentials, network documentation, and coordination with your IT team for testing schedules and emergency contacts.
Internal testing is designed to minimize business disruption. We coordinate testing windows with your team, can restrict activities to specific hours, and use controlled testing methods. However, we may discover critical vulnerabilities that require immediate attention, which we communicate immediately.
We test for lateral movement, privilege escalation, insider threats, network segmentation weaknesses, Active Directory vulnerabilities, data access controls, and persistence mechanisms. Our testing simulates real-world attack scenarios to identify how far an attacker could penetrate your internal systems.
Internal testing assumes an attacker has already gained initial access to your network, focusing on lateral movement and privilege escalation. External testing evaluates your perimeter defenses. Both are complementary and provide comprehensive security coverage when used together.
You'll receive a detailed report including executive summary, technical findings with proof-of-concept, network diagrams showing attack paths, risk ratings, and prioritized remediation recommendations. We also provide a remediation roadmap and offer post-test support for addressing identified issues.
We recommend annual internal penetration testing as a baseline, with additional testing after major network changes, new system deployments, or security incidents. Organizations with complex networks or strict compliance requirements may benefit from semi-annual testing.
Yes, Active Directory security is a core component of our internal testing. We assess for common AD vulnerabilities including Kerberoasting, AS-REP roasting, privilege escalation paths, trust relationships, and group policy misconfigurations that could lead to domain compromise.
Absolutely. We provide detailed remediation guidance, priority matrices, and ongoing support. We can also perform re-testing of fixed vulnerabilities, provide security awareness training, and offer virtual CISO services to help implement long-term security improvements.
Still Have Questions?
Our internal security experts are here to help answer any questions about network penetration testing.