Scoping & ROE
We lock down the test type (external, internal, segmentation), strict target ranges, testing windows, and rules of engagement before firing a single packet.
// OFFENSIVE SECURITY // NETWORK PENTESTING
Network Security Services
Internal and external network penetration testing — segmented environments, legacy systems, and the paths attackers actually take through your infrastructure.
Internal & External
PK & Worldwide
ISO 21001 Registered
Service Overview
Network penetration testing simulates the activity of an external attacker probing your internet-facing infrastructure, or an internal threat who has gained a foothold on your network. Both scenarios remain among the most common attack vectors in real-world breaches, demanding far more depth than automated vulnerability scanning can provide.
Just Hacked On delivers intelligence-led network penetration testing across internal, external, and segmentation testing scenarios. Our senior operators combine deep manual exploitation with broad coverage across the technologies you actually run: Active Directory, Linux server estates, network appliances, OT/IoT segments, and cloud-edge gateways.
Every engagement produces actionable findings prioritized by real-world exploitability—not auto-generated 200-page reports nobody reads, but the critical 15-20 issues that materially reduce your actual risk.
Full Estate Coverage
Active Directory Focus
Manual Exploitation
Segmentation Validation
Secure Your Infrastructure
Tell us your scope and timeline — the JHO desk will respond with a tailored proposal and engagement plan.
SLA: RESPONSE UNDER 24 HOURS
What is network penetration testing?
Network penetration testing is the structured, manual assessment of your network infrastructure for exploitable security weaknesses. It executes in three primary forms: external testing (assessing your internet-facing perimeter as a remote attacker would); internal testing (assessing post-foothold lateral movement, privilege escalation, and access to crown-jewel systems); and segmentation testing (validating that network controls between DMZ, CDE, OT, and dev/prod actually enforce the boundaries they claim).
Network pentesting goes significantly deeper than vulnerability scanning. Scanners find known CVEs; our network pentesters find what scanners systematically miss: subtle misconfigurations, weak credentials, exposed administrative interfaces, unsegmented zones, and the complex attack paths that chain minor individual issues into critical domain compromise.
What network testing delivers:
Validated picture of your external attack surface from a real adversary's perspective
Identification of internal lateral movement and Active Directory privilege escalation paths
Strict verification of network segmentation between critical security zones
Evidence supporting compliance mandates (PCI DSS Req 11.4, ISO 27001, SOC 2)
Discovery of vulnerable legacy protocols or unauthorized shadow infrastructure
Concrete remediation guidance prioritized strictly by real-world exploitability
Most organizations require at least annual network testing, alongside quarterly assessments for internet-facing services in high-target sectors like financial services or e-commerce.
Why network testing matters
Network compromise remains the leading precursor to catastrophic data breaches[cite: 11]. Initial access via internet-facing services, lateral movement through unsegmented environments, and privilege escalation to Domain Admin these are the exact steps adversaries use to turn a single vulnerability into full enterprise compromise[cite: 11]. Intelligence-led network pentesting is the only practical way to validate that your defenses hold up against a determined attacker[cite: 11].
Beyond pure security, threat-led network testing is a strict compliance mandate[cite: 11]. PCI DSS Requirement 11.4 enforces annual penetration testing of in-scope networks; ISO 27001 Annex A.12.6.1 demands regular technical compliance reviews; and SOC 2 CC7.1 requires concrete evidence of continuous vulnerability assessment[cite: 11].
Without intelligence-led network testing, organisations face:
Undetected external attack paths into critical backend systems
Unvalidated network segmentation that collapses during a real attack
Undiscovered privilege escalation vectors reaching Domain Admin
Costly compliance failures across PCI DSS, ISO 27001, and SOC 2
Rogue shadow infrastructure invisible to standard security tooling
Dangerous false confidence generated by automated scan-only assessments
Network pentesting is the single highest-value security investment for organizations operating a mature digital estate[cite: 11].
ENGAGEMENT SCOPE
Our Network Testing Methodology
Intelligence-led methodology combining established frameworks (NIST SP 800-115, OSSTMM, MITRE ATT&CK) with hands-on exploitation depth.
Asset Discovery
Deep OSINT and DNS discovery to map your complete external attack surface, exposing forgotten assets and shadow infrastructure.
Vulnerability Enum
Comprehensive port scanning, exact service fingerprinting, and manual vulnerability identification across the entire in-scope estate.
Manual Exploitation
Confirmed vulnerabilities are weaponized to demonstrate real impact—harvesting credentials, exploiting weak configurations, and compromising services.
Privilege Escalation
Post-compromise escalation paths aggressively explored—from local admin to Domain Admin, impersonating service accounts and abusing misconfigurations.
Lateral Movement
Controlled pivoting across the network to strictly test internal segmentation effectiveness and validate reach toward objective crown-jewel systems.
Report & Debrief
Actionable findings backed by exploitation evidence, CVSS plus real-world exploitability prioritization, and a live walk-through with your team.
Remediation Retest
Critical and high-severity findings are rigorously re-tested after your team remediates, providing formal validation included directly in the scope.
Typical engagement: External infrastructure tests typically 4-6 days; internal network tests 6-12 days; combined engagements 15-20 days depending on estate size.
ENGAGEMENT DELIVERABLES
What you receive
Every network pentest engagement with Just Hacked On includes:
Signed rules of engagement and scoping document
Executive summary for board and management consumption
Detailed technical findings with exploitation evidence
CVSS-rated severity with exploitability context
Practical remediation guidance for every issue
Network attack-path diagrams for chained findings
Walk-through session with your technical team
Remediation retest of critical and high findings
Industries We Serve
We deliver this service across these sectors:
Defence & Government
Financial Services
Healthcare
SaaS & Technology
Cloud Services
E-commerce & Retail
Education
Professional Services
YOUR OFFENSIVE SECURITY PARTNER
Why Just Hacked On for Network Pentesting?
Automated vulnerability scanners check boxes, but real attackers exploit complex network topologies and subtle misconfigurations. To truly secure your perimeter and internal infrastructure, you need an assessment that mimics how a highly motivated adversary actually moves through your estate. At Just Hacked On, we move beyond basic port scanning to execute deep, intelligence-led network penetration tests. We focus on chaining minor flaws to breach segmentation, expose legacy protocols, and compromise Active Directory. Your engagement is led end-to-end by seasoned offensive security practitioners who understand how to safely stress-test your network without disrupting critical business operations.
Senior Offensive Security Specialists
Deep Lateral Movement Testing
Active Directory & Domain Focus
Strict Segmentation Validation
Actionable Configuration Fixes
Complimentary Validation Retest
QUESTIONS & ANSWERS
Network Pentesting, Answered
Clear answers to common questions about scoping, execution, and safety.
External testing targets your internet-facing perimeter (firewalls, VPNs, exposed services). Internal testing simulates an attacker who has already breached the perimeter or a malicious insider, focusing on lateral movement, Active Directory exploitation, and accessing restricted network segments.
No. Our senior operators use controlled, non-destructive techniques. We avoid denial-of-service (DoS) attacks by default and closely coordinate with your team to ensure production environments remain stable throughout the engagement.
Yes. Modern networks are hybrid. We assess cloud environments, VPC configurations, and site-to-site VPNs alongside your traditional on-premise infrastructure to map complete cross-boundary attack paths.
AD is a primary target. We look for misconfigurations, excessive privileges, Kerberoasting opportunities, and certificate template vulnerabilities (ADCS) to demonstrate exactly how an attacker could escalate privileges to Domain Admin.
Yes. Every engagement includes a verification retest. Once your team patches the critical and high-severity findings, we re-evaluate those specific issues and provide an updated report proving they are safely resolved.
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READY TO SEE WHAT HACKERS CAN FIND?
Tell us your scope and any deadline. You will get a scope recommendation and a fixed-fee quote, usually within one business day.