UK Penetration Testing Services

ConnectDS is a premier Penetration Testing Company in the UK; our expert teams offer network penetration testing services for your business. Our highly effective Network Security Testing is a crucial part of our security assurance services with pen testing solutions helping companies with their cyber security issues across the UK. Our Infrastructure penetration testing team are located in London and Surrey and perform assessments to UK businesses. 

ConnectDS are one of the UK’s leading Penetration Testing Companies, Our network and infrastructure penetration tests have been designed in alignment with leading frameworks, scoping your businesses individual requirements. Initial consultation identifies your assessment drivers and requirements and to identify security issues and weaknesses that criminals could leverage to launch a cyber attack on your organisation and supply chains. Modern businesses need to be committed to continually improving their digital platforms and cyber security systems if you want to create success in today’s technological environment. Organisations face a variety of cyber threats that can damage your profits and reputation. For this reason, you need an assurance plan in place as part of your overall security strategy. If you don’t have an appropriate plan in place, speak to us at ConnectDS about our advisory services. We can improve your protection and investment, which will deliver business benefits over a long period.

The ConnectDS team have a broad and expert level of experience in ethical hacking and performing Penetration testing and security assessments. Our Pen Testers are trained to approach our engagements with the mindset of a cyber criminal. ConnectDS is in the ideal position of being neutral and external, which is crucial when we need to remain objective throughout a security evaluation. We take immense pride in toiling to protect our clients’ reputations and keeping them safe from the threats that modern companies must contend with. You can trust us entirely, as ALL members of the ConnectDS team are background checked, including the administrative staff. Due to involvement with sensitive clients, ConnectDS have team members with national security vetting clearance, including SC clearance.

What is Penetration Testing?

A network penetration test, or ‘Pen Test’, is a simulated cyber attack on your organisation’s internal or external network. Our penetration testing solutions assess your organisation’s internal network and security perimeter to validate software patch levels, services and configuration though the granular assessment and identification of weaknesses that attackers could exploit. ConnectDS provide detailed reporting that include a proof of concept of exploitation, details on the impact and explanation on how to remediate these security flaws. It only takes a single vulnerability for a cyber attacker to compromise your data and gain entry to your organisation. 60% of small to medium-sized businesses go bankrupt within six months of an effective cyber attack.

What are the benefits of Penetration testing? 

Our pen testing experts and penetration testing methods coupled ensure comprehensive and penetration testing of your infrastructure assessment requirements. Proactively performing pen testing of your organisation is a proactive security assessment with the aim of identifying vulnerabilities within your organisation before they can be located and used to gain unauthorised system access or leverage an attack. Benefits of network pen tests include:

  • Validate security hygiene and effectiveness of existing patch management, security monitoring and preventive security defences.
  • discover security risks and mitigate before then can be leveraged by an attacker
  • Identify security vulnerabilities through manual assessment that cannot be detected using automated security systems
  • Assess security hygiene inline with industry and compliance regulation requirements and alignment to formal mandates.
  • Establish trust in your security and demonstrable validation for clients, investors and auditors.

How do we perform Penetration Testing UK?

To identify weaknesses before attackers do, ConnectDS carries out a penetration testing assessment by organising a coordinated real-time simulated cyber attack using our professional team of ethical hackers to attack business systems. This simulated cyber attack aligns to penetration testing frameworks and is an all-encompassing assurance service. ConnectDS offer a fully consultative service to work with your business to understand and scope your business for your Penetration testing requirements. We do this by understanding your environment, limitations, and business requirements for security testing; click the button at the bottom of this page to get pricing for your penetration testing requirements. Our pen testing services identify vulnerabilities and measures their effect through safe exploitation. Based on your objectives, our penetration testing can be either:

  • External Penetration testing – We target your business assets that are visible on the internet to gain access and extract private data.
  • Internal Penetration testing – We simulate an attack from a malicious insider from behind the firewall.

Once the extent of the assessment and commercial aspects are agreed, ConnectDS formalise the statement of work with the security consent needed. This statement makes sure all participants are aware of the process, timelines, and assessment scope. 

Throughout the evaluation, our team collates all testing stages and findings into the main report, which outlines the necessary action that you must take in the short-term. The report includes insights for essential measures that you can take as an ongoing strategy to minimise security risks and reduce the chance of a successful cyber attack to a minimum. Products we provide at the end of and during the engagement include q formal assessment report that contains Vulnerabilities identified, Next steps and suggested solutions.

As companies are increasingly relying on technology, the need to make sure your technology systems are secure from cyber attack also escalates. Security Pen testing is an essential part of improving your company’s cyber security position. It is an industry-recognised way of working out what your cyber security weaknesses are. Detrimental effects of a cyber attack on your business include:

  • Loss of client trust
  • Damaged reputation
  • Loss of income
  • Loss of confidential information
  • Compliance violations
  • Information Commissioner’s Office (ICO) fines

ConnectDS offer penetration testing retest services post-assessment to validate remediation activity and Web Application Penetration services. We also often perform social engineering assessments to measure the susceptibility of staff members of clicking a targeted email; this identifies the risk of employees clicking on suspicious links and phishing campaigns and allows for tailored staff security training.

Common FAQs about Penetration Testing

Please see below for some common questions on our penetration testing, if you would prefer to speak to someone then give us a call and speak to one of our team in our Surrey or London offices.

Penetration testing is a type of security assessment which simulates a cyber attack on a computer system or network in order to evaluate its current level of security.

Penetration testing is carried out using a variety of specialised security software to discover potential vulnerabilities which are then manually validated by a team of security professionals.

Unlike automated vulnerability scans, penetration testing requires manual testing by skilled security professionals and is used to stimulate a real life cyber attack, exploiting vulnerabilities found.

An ethical or ‘white-hat’ hacker is a security professional that uses their knowledge to identify weaknesses and vulnerabilities in computer systems in order to ethically disclose these to the relevant parties. This role is often referred to as a Penetration tester or Pen tester. 

Network penetration test costs are based on the scope of the assessment, let us know your requirements in our scoping form available here and we can provide you with an accurate cost aligning to your network assessment requirements.

External penetration testing is used to assess public facing computer systems from outside of your corporate network. External pen testing measures exposure across the internet so testing can be performed remotely.

Internal penetration testing is the assessmet of your internal devices on private IP ranges that sit in your company network (LAN). Internal pen testing can be performed locally by connecting physically to your local network, via VPN or using a specialist software agent installed on one of the computers within your network (or by implementing a ConnectDS specialist hardware sensor) that provides local scanning and assessment.

Penetration testing is vital to ensuring your companies vulnerabilities are remediated before malicious threat actors are able to exploit these and potentially steal sensitive data or money from your business.

We recommend companies carry out at least one penetration test per year in order to secure their network perimeter and computer systems.

The time scale of a penetration test varies greatly depending on the requirements and number of systems within scope. Get in touch with us for an accurate estimate for your assessment.


Let us know your requirements and one of our team will get back to you with a full proposal and  associated costs for our assurance and penetration testing UK services. We’re based in our Surrey and London offices but work with businesses across the UK.