Simulate breaches to test your internal security

Simulate an internal breach and uncover the flaws attackers could exploit after gaining access to your systems.
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Internal Penetration Testing

Test internal defences with simulated insider attacks

Cythera’s internal penetration testing simulates an attacker with network access but no system knowledge — just like a malicious insider. Our consultants aim to uncover privilege escalation paths, weak segmentation, and direct access to sensitive systems that should be protected.

  • Target internal systems like executive mailboxes and financial platforms
  • Assess segmentation to detect breakdowns in network zone isolation
  • Evaluate guest, BYOD, and corporate Wi-Fi security for weak controls
Service detail

Find internal flaws before attackers do

Internal defences are just as critical as your perimeter. We help identify inside-the-network risks that external controls can easily miss.

Go deeper than scans

Replicate attacker behaviour to test real risk

Our consultants act like intruders inside your network, identifying exposures and privilege paths most tools miss.

  • Discover vulnerable systems and internal apps
  • Spot open file shares and unsecured repositories
  • Simulate admin takeovers to test access controls
Our delivery process

How is it delivered

We collaborate with you from initial scoping to final remediation, ensuring testing is aligned with your environment and causes minimal disruption. Our detailed reports outline the vulnerabilities discovered, what they mean for your business, and how to address them effectively.
Pre-engagement planning
We outline the engagement’s scope, pinpoint critical systems, and set up clear communication pathways.
Testing
Our consultants maintain constant communication during remote or onsite testing and promptly escalate any critical findings.
Report delivery and beyond
You’ll receive a concise summary of key issues supported by detailed technical findings and practical remediation guidance. Our reports include clear reproduction steps, and we can perform validation testing to ensure the fixes are properly implemented.
Benefits

Why partner with Cythera for internal testing

We uncover high-impact vulnerabilities through expert-led testing that’s carefully planned to minimise business disruption.
Responsible testing
Our consultants combine thoroughness with precision—executing impactful testing while ensuring your systems remain stable and secure.
Trusted technical expertise
Our consultants hold top-tier certifications like OSCP, OSCE3, and CREST CRT, and we operate as an accredited CREST-certified consultancy.
Beyond the basics
We don’t stop at surface-level access. Our assessments aim to uncover all relevant vulnerabilities in scope, giving you a full view of your risk.
What comes next

Expand your security coverage

After identifying internal risks, we help you act quickly and strategically to improve security and reduce future exposure.

  • Prioritise and plan remediation efforts for the most critical risks
  • Conduct retesting to confirm vulnerabilities are resolved
  • Improve segmentation and controls with tailored advisory support
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Web Filter, CASB & DLP (Cloud Access Security Broker & Data Loss Prevention)
Monitor and manage how users interact with cloud, web, and AI platforms — including movement of sensitive data.
Web Application Penetration Testing
Uncover hidden flaws in your web apps — from session handling to access controls — through in-depth security reviews.
Frequently asked questions

Frequently asked questions

From risk assessment to rapid response - we’re with you every step of the way.

Which systems are in scope for an internal pen test?

Our team conducts thorough reviews of your internal network including Wi-Fi, segmentation, servers, and critical assets like executive email or shared drives to uncover weaknesses that traditional perimeter tools may miss.

Why is internal pen testing important if we already do external testing?

Perimeter tests show how well you block outside threats, but internal penetration tests reveal the damage possible if someone breaches that perimeter. They uncover risks like over-permissioned users, flat networks, and weak internal defences.

Will an internal pen test inrerrupt our systems?

Not at all. Cythera's internal testing is conducted in a controlled, low-impact manner. We work closely with your team to ensure continuity, delivering a risk report that supports informed remediation without interrupting operations.

Contact us

Talk to an expert

Please call our office number during normal business hours or submit a form below
Where to find us
If you experience a security breach outside normal working hours, please complete the form and we will respond as soon as possible.