Cyber Security

The Benefits & Limitations of Penetration Testing vs Vulnerability Scanning

26 July 2022

Today, cyber attacks have increased dramatically and have also become more sophisticated, resulting in companies opting for advanced cyber security solutions. Not only that, many companies have also turned to modern cyber security tools like vulnerability scanning and penetration testing.

However, many organisations don’t understand how these systems function or which one is more suitable for them. In fact, some assume that they are two different cyber security methods that fulfil the same objective, but that is far from the truth.

In reality, while these practices may seem to target potential vulnerabilities, the methods that they use and the results that they yield are much more distinct.

At Redpalm, to help you learn more about these cyber security methods, we’ve directly compared a penetration test vs a vulnerability scan to see which is better for your company.

In this blog, we’ll explain the pros and cons of penetration testing and vulnerability scanning to help you make an informed decision. Let’s get started.

What is Vulnerability Scanning?

Vulnerability scanning is the act of searching for potential vulnerabilities in your network devices, like routers, firewalls, servers, and other applications. Through this scan, your IT team can conduct high-level tests to search for known virus threats in your system and get rid of them.

This is why, at Redpalm, we always recommend that you perform vulnerability scans on your system both internally and externally to expose any flaws that cybercriminals can use for a successful attack.

Pros and Cons of Vulnerability Scanning

Pros

When it comes to your IT system, there are thousands of known vulnerabilities that can cause cyber attacks. However, with the help of vulnerability scanning, it becomes easier for your IT team to detect threats within a complex network.

That’s not all, there are several other pros to using vulnerability scanning, such as:

  • You can perform quick, high-level tests with a broad scope.
  • It can automatically be run by your system weekly, monthly, quarterly, etc.
  • It helps create an established security record.
  • It is affordable for companies.

Cons 

Vulnerability scanning offers vital insights into known vulnerabilities, but it’s not designed to be a complete cyber security solution. Therefore, it’s crucial to know the limitations of a vulnerability scan to avoid having false confidence in your level of security.

The cons of vulnerability scanning include:

  • It is limited to known vulnerabilities, meaning other vulnerabilities can exist in your system.
  • It is designed solely for reporting, meaning it can’t protect you without the assistance of a professional.
  • The scan results depend on the quality of the scanner.
  • You may need an analyst to check the results of the scan.

What is Penetration Testing?

Penetration testing is the process of finding new vulnerabilities through a test that’s carried out by a security professional. It simulates a cyber attack against your network and attempts to breach system applications, servers, and devices to discover potential vulnerabilities.

This form of testing is more invasive when compared to vulnerability scanning and is always performed by a human. Moreover, these tests offer targeted solutions for any specific vulnerabilities detected in the system.

All in all, penetration testing is useful for any organisation that is looking to create and maintain an effective cyber security posture by eliminating any vulnerabilities in real-time.

Pros and Cons of Pen Testing

Pros

Hackers are always looking for new ways to breach organisational networks to get their hands on sensitive data. As a result, pen testing offers you a better insight into how your network might react to possible ransomware threats.

Some other benefits of pen testing include:

  • It helps to identify a wide range of vulnerabilities.
  • It helps to assess the damage of attacks on businesses.
  • You don’t need to perform penetration testing frequently.
  • It can determine if you need better cybersecurity measures for your business.

Cons

Penetration testing helps to find weaknesses in your network and tries to exploit them. However, since these tests can only be carried out by a human, it is impossible to simulate every possible cyber attack.

Here are some other limitations of penetration testing:

  • It can be expensive to conduct a penetration test.
  • These tests have a targeted nature and tend to have a narrow scope.
  • The effectiveness of the test depends on the skills of the tester.
  • You can’t carry out these tests with automation.

Choose Redpalm for Effective Cyber Security Solutions

When it comes to examining a penetration test vs a vulnerability scan, both help your business to find weaknesses that could lead to a successful attack. However, if you don’t have the required resources to conduct these scans/tests, you can get in touch with the IT team at Redpalm.

Redpalm is a managed service provider (MSP) and a trusted cyber security partner. We equip your business with advanced IT infrastructure to swiftly identify and neutralise any security risks.

Our wide range of services includes technology procurement, vulnerability assessments, endpoint management, and more.

To learn more about our managed IT services, click here or contact us to schedule an appointment today.

Latest From The Blogs

IT outage disaster recovery plan, a person working on a laptop in a data centre
Cyber Security

Can You Recover from a Major IT Outage in Under 2 hours?

If you don’t have a disaster recovery plan for your business yet, you might still have key questions about disaster recovery plans. Is it possible to recover from a major IT outage in 2 hours in the UK? Can any plan be strong enough to allow for a 2-hour IT recovery? These are the questions that we’ll be addressing in this blog. We’ll explain what fast disaster recovery in the UK looks like and how you can plan to quickly resolve your issues.

Read More
Cyber Security

Is Your Business Ready for the End of Windows 10 Support?

In this blog, we’ll explain what the end of Windows 10 support means for businesses, covering the risks, technology challenges, and how your business can stay secure with the right support.

Read More
it audit and cyber insurance, 2 technicians finding cyber security gaps in encrypted data on a computer
Cyber Security

Can IT Health Checks Lower Your Cyber Insurance Premium?

In this blog, we’ll explain how IT audits reduce cyber insurance premiums and provide you with a cyber insurance readiness checklist. You’ll also find practical steps to prepare your IT systems and documentation for renewal with support from Redpalm.

Read More
jaguar land rover cyberattack, hackers planning in front of multiple screens with the world map on them
Cyber Security

4 Lessons SMEs Can Learn from the Recent Jaguar Land Rover Cyberattack

In August 2025, Jaguar Land Rover suffered a cyberattack that halted production and disrupted supply chains. The incident highlights the operational and financial risks of IT outages, the importance of a clear incident response, and the vulnerability of all businesses. SMEs can learn key lessons to strengthen continuity and cyber security.

Read More
Cyber Security, Hybrid IT

How to Provide Endpoint Security for Remote Teams Without Slowing Productivity

Securing remote workforces requires balancing protection and productivity. Core measures include endpoint detection and response, patching, VPNs, monitoring, recovery, and staff training to reduce risks without slowing workflows. Modern endpoint management tools and zero-trust approaches help small and large businesses stay resilient, compliant, and efficient.

Read More
it outsourcing cost benchmarking, 2 IT experts on a headset call in front of a computer
Cyber Security

Are You Overpaying for IT Support? Benchmark Outsourcing Costs in 2026

IT outsourcing costs for UK SMEs in 2026 are expected to vary significantly depending on pricing models, business size, user numbers, and SLA scope. Typical benchmarks will range from £15 to £175 per user, per month, or £60 to £200 per hour. Key cost drivers will include hybrid working, cyber security requirements, and compliance pressures. Using IT outsourcing cost benchmarking tools and independent audits will help ensure spending aligns with service quality and market value.

Read More
chrome security update, cropped shot of a person using a computer
Cyber Security

How Chrome’s Latest Security Update Reflects Cyber Threat Evolution

Google Chrome faced 5 zero-day vulnerabilities in 2025, patched quickly to counter active exploitation. These incidents highlight how rapidly cyber threats evolve and why timely updates are critical. Businesses must adopt structured patch management and monitoring strategies to reduce risk, maintain continuity, and strengthen resilience.

Read More
outgrowing internal it team, IT professional around computer screens listening to an employee query in the office
Managed IT Services

How to Recognise When Your Business Has Outgrown Its Internal IT Team

In this blog, we’ll explain clear signs you’re outgrowing your internal IT team and why it might be a good time to outsource your IT infrastructure and operations to a trusted provider.

Read More
ai in it support outsourcing, cyber security professionals developing an AI software
General, Managed IT Services

The Rise of AI in Outsourced IT Support – What UK Firms Need to Know

In IT support outsourcing, AI is helping UK firms reduce downtime, cut costs, and scale services without compromising quality. Automation tools handle routine queries while machine learning enhances system monitoring and ticketing efficiency. Adoption concerns are addressed through human oversight and reliable design. Redpalm delivers AI-enhanced MSP support tailored to business needs.

Read More
prepare for zero day attacks, person in front of multiple big screens involving global network code for phishing, ransomware, and cyber terrorism search
Cyber Security

How B2B Firms Can Prepare for Zero-Day Attacks in 2025

As a business leader or IT manager, you probably know that technology is a double-edged sword. Although it drives efficiency,

Read More