Offensive security
Network & Application Penetration Testing
Find your weaknesses before attackers do. GDF combines real-world testing tools, AI-assisted reconnaissance and attack testing, and a documented workflow to show where you are exposed and what to fix first.
Find the weaknesses that could cost your business
Can an attacker get in, reach sensitive data or take control of a critical system? GDF penetration testing gives your security team a practical answer. We test your networks, applications, APIs, identities and cloud access, then show how the findings affect your business.
Our human-led penetration testing combines experienced testers, real-world tools and AI-assisted analysis. We validate the weaknesses we find, connect them into attack paths and give your team reproducible evidence. You receive clear priorities for remediation and a way to verify the fixes.
Network and application testing in one engagement
A vulnerable application can expose data. A compromised account can open a path into the network. We can test both together, with the scope built around the systems your business depends on.
- External penetration testing: examine internet-facing systems, exposed services and remote-access entry points.
- Internal and assumed-breach testing: assess what an attacker could reach from an agreed foothold, including privilege escalation, lateral movement and segmentation.
- Web applications and APIs: test login, permissions, data access, business logic and the connections between applications.
- Cloud and identity testing: examine administrative access, account privileges and paths to sensitive resources.
- Source-code review: inspect the implementation behind security-sensitive functions and connect code findings with application behavior.
- Red teaming: exercise an agreed attack objective and assess how your defenses detect and respond to the activity.
Explore our application penetration testing and source-code security review methods, or discuss a combined engagement.
Put your testing priorities on the table
Tell us what you need tested and when. We can discuss the approach, deliverables and price.
Black-box, gray-box and source-informed testing
Black-box testing: the outside view
We begin with limited internal knowledge to assess the exposed systems and access paths an outside attacker could discover. This approach helps you understand what your public-facing environment reveals.
Gray-box testing: go deeper with authorized access
Provide selected accounts, documentation or architecture details so we can examine what users with different privileges can do. Gray-box testing is useful for checking internal access, application permissions and the separation of customer data.
White-box testing and source-code review
With source access and system context, we can examine the code behind authentication, authorization, data handling and business rules. We connect implementation findings to the running application and give developers specific remediation guidance.
AI-assisted reconnaissance. Expert-led attack testing.
AI can help organize reconnaissance, correlate observations and develop test cases across the approved targets. GDF testers select the tools, direct the testing and validate the results. That combines the speed of AI assistance with the judgment needed to distinguish a useful finding from a misleading result.
Our documented workflow carries each finding from discovery through validation, reporting and retesting. Your engineers get the reproduction steps; leadership gets the business impact and priorities. Read more about AI-assisted penetration testing.
Red teaming: put detection and response to the test
A penetration test identifies and validates exploitable weaknesses. A red-team engagement pursues an agreed objective across the defenses in scope. We can assess whether the security team sees the activity, how controls interrupt it and where response needs improvement.
We agree on targets, operating hours, permitted techniques, escalation contacts and stop conditions before testing. The exercise gives your defenders a record of the activity and practical opportunities to improve detection and response.
The GDF process
Our penetration testing workflow
From the first target profile to the final report, each step builds the evidence your team needs to understand the exposure and act on the findings.
Discover
Understand the environment
Profile
Map publicly available information about the approved targets.
Verify
Confirm the targets, authorizations and testing dates with your IT contact.
Initial scanning
Identify networks, hosts and services within the agreed scope.
Enumeration
Identify services, accounts, versions and access details for the test.
Validate
Test the agreed attack paths
Attack plan
Review the proposed attack paths with your IT contact before testing.
Exploit
Execute the approved plan to validate access and privilege findings.
New networks or higher access found?
Yes: Return to Profile. Confirm any scope changes before testing additional targets.
No: Continue to Analysis.
Explain
Turn findings into action
Analysis
Connect the test results to affected systems, data and business operations.
Review
Discuss the findings with your team and confirm remediation priorities.
Final report
Deliver the executive summary, technical evidence and agreed next steps.
A report that helps you fix the right things first
- Executive summary
- The business exposure and decisions that deserve attention.
- Validated findings
- Affected systems, reproduction steps and evidence of the observed impact.
- Attack-path analysis
- How weaknesses combine to reach the agreed objectives.
- Remediation priorities
- Practical fixes ordered by exposure and consequence.
- Retest results
- Verification of the agreed corrections and a clear record of their status.
Tell us whether the report is for your engineers, CISO, board, customer assurance process or an upcoming assessment. We can plan the deliverables around those needs.
Get a free consultationFrequently asked
Common questions
Can GDF test our network and applications together?
Yes. We can combine network, application, API, cloud and identity testing in one defined engagement, including the paths between those systems.
Do you offer black-box and gray-box penetration testing?
Yes. Black-box testing starts with limited internal knowledge. Gray-box testing uses selected accounts or system information to examine access and behavior in greater depth. We help you choose the approach that fits your objectives.
Can the engagement include source-code review?
Yes. Source-code review can be included to examine implementation details and connect code-level weaknesses with the behavior of the application.
How do you use AI in penetration testing?
We use approved AI tools to assist reconnaissance, correlate observations and develop test cases. GDF testers direct the work and validate findings before they enter the report.
Can you also assess detection and response?
Yes. A scoped red-team exercise can test an agreed attack objective and show what your defenses detect, how controls respond and where improvements are needed.
How do we get a scope and price?
Tell us which networks, applications and locations are involved, your deadline and the outcome you need. We will discuss testing depth, access, reporting and retesting so the proposal reflects your priorities.
Related security services
Application security testing · Source-code review · AI-assisted penetration testing · OT, ICS and SCADA assessments
Get a clear scope and a practical proposal
Share the systems or application you want tested, the business concern and your deadline. We will discuss the right testing depth and the report your team needs.