Safeguarding Code: The Role of Managed Security Testing Services

Application softwares are more vulnerable to attack these days. One minor bug can result in: 

• Exposure of confidential data
• Disruption in business operations 
• Loss of customer interest
• Financial Loss 
• Impact on Regulations 

Although traditional security measures can uncover most of the application’s code, configuration, APIs, infrastructure, or authentication weaknesses, they are not always sufficient. Managed security testing services can come to your aid at this point.

Managed security testing integrates security expertise, testing methods, and ongoing testing to discover and confirm security vulnerabilities before criminals exploit them. These services can be used for penetration testing, vulnerability assessments, code reviews, and security testing throughout the Software Development Lifecycle (SDLC), providing a structured approach for enhancing application security.

This guide provides an overview of managed security testing, its importance, the role of penetration testing, and how organizations can leverage these services to enhance their applications’ resilience.

 

Quick Answer: What Are Managed Security Testing Services?

Managed Security Testing Services are security testing services that are outsourced to organizations to continuously discover, validate, & remediate security vulnerabilities in applications, APIs, infrastructure, and other digital assets.

As per the needs of an organization, managed security testing can encompass:

• Penetration testing
• Vulnerability assessments
• Application security testing
• API security testing
• Source code reviews
• Security during SDLC
• The assessment of configuration and infrastructure.
• The vulnerability validation and retesting process.
• Compliance-focused security assessments

The overall objective is very straightforward: to find the vulnerabilities that are present in a system before they can be exploited by hackers and to offer practical solutions to these vulnerabilities.

Why Application Security Matters

Applications are dealing with increasingly sensitive customer, financial, employee and business data. This means they are an easy target for the cybercriminals.

The average cost of a data breach around the world was $4.44 million, according to IBM’s Cost of a Data Breach Report 2025. The report also revealed that in the United States, the average cost of a security incident was $10.22 million, underlining the financial risks posed by security incidents.

The impact of the threat is also shown in the Verizon 2025 Data Breach Investigations Report (DBIR), which examined over 22,000 security incidents and verified over 12,000 breaches.

These statistics illustrate why application security should not be done at the end of the process. Security should be considered in development, testing, deployment and maintenance.

An understanding of the modern cyber threat landscape.Knowledge of the current cyber threat environment.

Cyber threats are becoming ever more complex.

The threat of cyber is as diverse as the threats that come in the form of financially oriented crime or ransomware, or as a targeted attack against an organization and critical infrastructure.

There are several vulnerabilities that can be targeted by attackers include:

• Broken authentication
• Improper access controls
• Injection vulnerabilities
• Security misconfigurations
• Exposed APIs
• Insecure dependencies
• Sensitive data exposure
• Vulnerable application components

The problem is the new vulnerabilities and attack methods are still being discovered. An application that is secure when it is launched can be vulnerable to new security issues as the code, dependency, integrations, or infrastructure changes.

Why Critical Systems are Enticing Targets

Digital systems are becoming more and more interconnected and vital to organizations. Valuable information may be found in any kind of banking platform, healthcare application, government system, SaaS platform or ecommerce application, and they may provide access to critical business functions.

If one part of an application is susceptible, this could impact connected components.

A flaw in an application’s security logic could allow a hacker to gain access to information that he or she should not have. Security testing is a useful process to uncover these vulnerabilities before they can turn into an actual security incident.

Where Security Vulnerabilities Hide in Application Code

Application Code has many parts that are vulnerable to attacks.

Not all security vulnerabilities are apparent. They can be present in application logic, third-party components, API implementations, configuration, authentication, etc. or in access control processes.

Common areas that security testing involves:

Area	What does Security Testing Look For?
Authentication	Poor login controls and authentication flaws.
Authorization	Users who access resources to which they do not have access.Users who use resources they are not supposed to use.
Input validation	Handling of untrusted input that is not done properly.
APIs	Authenticity and authorization concerns, and data exposure concerns.
Session management	Weak session controls and/or vulnerabilities related to sessions.
Configuration	The application or server configuration is insecure.The application or server configuration is not secure.
Dependencies	Third party libraries & components that are vulnerable.
Sensitive data	Sensitive information improperly stored/possibly exposed to others

That is why it’s important to go beyond automated vulnerability scanning for security testing. While automated tools can help discover possible things to fix, expert security professionals are able to confirm results and verify whether or not a weakness can actually impact the business.

What is Managed Security Testing Services?

Managed Security Testing Services allow organisations to gain access to security testing skills without having to create and maintain each of the skills internally.

A managed security testing provider can test applications and environments with a mixture of automated tools and manual testing techniques.

Services can cover (but are not limited to):

Penetration Testing

Penetration testing acts as a form of simulated attack on an app, API, network or infrastructure to find vulnerabilities and how much they affect the organization.

Penetration testing differs from a simple vulnerability scan because the process has to actually be analysed and validated by humans to see if identified vulnerabilities can be exploited.

Vulnerability Assessment

A vulnerability assessment is the process of discovering known security vulnerabilities in systems and applications. They can assist organisations to create a prioritised list of vulnerabilities to focus on.

Source Code Review

Security code reviews involve an examination of the source code of an application for security vulnerabilities that may be detected only by a code review, and not through external testing.

This can assist in the detection of application logic, authentication, authorization, input handling, and more.

Application Security Testing

Application security testing determines if an application can resist common attack scenarios, and if application security controls function as expected.

API Security Testing

APIs are commonly used to communicate between applications and services in modern applications. API security testing involves reviewing authentication, authorization, input validation, data exposure and more for potential weaknesses.

 

Why opt for Managed Security Testing Services?

You may want to opt for managed security testing services because:

Identification of the weaknesses before the attacker knows them:

There are various benefits that come with managed security testing, one of which is the proactive approach.

Rather than being vulnerable to a security incident, an organisation can be proactive and discover vulnerabilities in a controlled fashion and correct them before they are used against them.

Use Automation in conjunction with Human Expertise

An automated security solution can be very fast to scan large environments but can also give false positives or miss vulnerabilities that need to be analyzed in context.

Human knowledge is added to security solutions through:

• Validating vulnerabilities
• Understanding application logic
• Connecting multiple weaknesses
• Evaluating possible impact to the business.
• Prioritizing remediation

This combination which gives a more complete security evaluation.

Ensure Compliance and Risk Management are supported.

There are a number of organizations that have industry specific security and regulatory needs.

Security testing can be used to demonstrate the evaluation of security controls and mitigation of vulnerabilities. Testing alone is not a comprehensive compliance program, but it can help an organization’s overall risk-management and compliance program.

Increase security from start to finish (SDLC).

Security shouldn’t be an afterthought for application development.

The organizations can embed security testing in SDLC to find weaknesses earlier. It’s easier to find and repair a vulnerability than it is once it’s deployed.

Penetration Testing: An integral component of Managed Security Testing.

Penetration testing is one of the most important methodologies used within managed security testing.

Penetration testing does not just uncover vulnerabilities, it is a process that tries to see if a vulnerability can be exploited under controlled conditions.

Types of Penetration Testing

The testing approach can vary depending on how much information the tester receives about the target.

 

Testing Type	Description	Useful For
Black-box	Tester has limited information about the target	Simulating an external attacker
White-box	Tester receives detailed information, such as source code or architecture	In-depth security assessments
Gray-box	Tester receives partial information	Simulating an attacker with some internal knowledge

The appropriate approach depends on the objectives, scope, environment, and risk profile of the organization.

 

Penetration Testing Methodology

A standard penetration testing engagement can be broken down into a series of steps.

1. Planning and Scoping

The testing team sets the goals, assets, scope, scope exclusions and rules of engagement.

This means that testing will be approved and will not unnecessarily interfere with business operations.

2. Reconnaissance

Testers perform a collection of information on the environment being targeted and discover possible attack points.

This can involve an understanding of applications, technologies, APIs, exposed services and other assets involved.

3. Vulnerability Analysis

Potential vulnerabilities are identified and analyzed with regards to their severity, exploitability and potential business impact.

4. Controlled Exploitation

Where permitted, testers validate vulnerabilities without compromising the safety of the system, to understand if there is any possibility of them being exploited and what access or impact they may offer.

The goal is to not harm the environment, but rather give proof of the security risk.

5. Reporting

The Testing team records the results, evidence, risk assessment, business impact and remediation suggestions.

A good report should clearly convey to both technical teams and business leaders what is wrong and why it should be.

6. Retesting

Security testers can then retest identified vulnerabilities after remediation to ensure that the remediation was successful.

This completes the circle of identifying a vulnerability and confirming that the vulnerability is fixed.

How Managed Security Testing fits into SDLC.The role of Managed Security Testing in SDLC.

Security testing is more effective when it’s performed as a part of the development process, and not as a standalone event.

Here is one way to do a practical approach:

The Development to Security Review to Testing to Remediation to Retesting to Deployment to Continuous Monitoring process.

For instance, a Saas company developing a new customer portal could have code reviews when developing the portal, test APIs for security issues before deploying it to production, test APIs for penetration before deployment, and retest after patching vulnerabilities.

This way, development and security teams collaborate, rather than security becomes the last line of defense.

Managed Security Testing vs. One-Time Security Testing

A one-time security assessment can provide valuable insight into the security posture of an application at a particular point in time.

But, applications are evolving all the time.

New features, integrations, APIs, dependencies, infrastructure changes, and code changes can add new vulnerabilities.

For a more continuous security assessment, managed security testing offers a more on-going way to perform testing, enabling organizations to develop repeatable testing processes that continually address new risks.

One-Time Testing	Managed Security Testing
Point-in-time assessment	Assessment that continues throughout or after a period of time.
Engagement is restricted to a set duration. Only a set period of engagement allowed.	Can support ongoing security requirements.
Findings from 1 assessment	Vulnerability identification and validation on a regular basis
Organization manages follow-up	If some students require retesting or remediation, Provider can validate this through retesting and/or remediation.
Limited testing capacity	Having dedicated security experts to help.

Best Practices for Managed Security Testing

A structured approach will yield more value from managed security testing for organisations.

Establish a clear scope.

Determine what to test, including applications, APIs, infrastructure, environments and assets.

Establish Written Authorization

Security testing must always have explicit rules of engagement.

Automated and Manual Testing come together

Automation is fast and thorough, and manual testing is detailed and contextual.

Prioritize Business Risk

Not all vulnerabilities are created equal. Focus on findings which are based on exploitability, affected assets, data sensitivity, and potential business impact.

Validate Vulnerabilities

Where appropriate, potential vulnerabilities should be validated, to differentiate between real vulnerabilities and false positives.

Retest After Remediation

If a vulnerability has been patched, then it shouldn’t just be considered patched. Retesting ensures that the problem was solved.

Selecting the proper Managed Security Testing Provider

When considering a testing provider, organizations should look at the provider’s list of testing tools, but that’s not enough.

Consider:

• Experience with application and technology stack
• Security testing methodologies
• Manual testing capabilities
• Penetration testing expertise
• Having experience in industry and regulatory work.
• Reporting quality
• Remediation guidance
• Retesting capabilities
• Know how to incorporate security testing activities into the SDLC.
• Scalability as application grows

The right provider should be an extension of the organisation’s security and development teams, not a mere deliverer of a vulnerability report.

 

The Business Value of Managed Security Testing

Managed security testing isn’t just about technical vulnerabilities.

It decreases the security risk, safeguards critical data, enhances application resilience, and integrates security into software development as a standard process.

The value is that CTOs and technology leaders can have greater visibility of the security vulnerabilities and actionable information to prioritize remediation efforts.

Rather than asking the question: Is our application secure, the question that should be asked is:

• What vulnerabilities exist?
• Which ones do you feel are the most risky for business?
• Are they truly susceptible to use?
• Which should we start to change first?
• Have our solutions proved effective?

Managed security testing can provide answers to these questions with structured, evidence-based security testing.

Frequently Asked Questions

What are Managed Security Testing Services?

Managed Security Testing Services are outsourced security testing services that enable organizations to detect, validate, prioritize and mitigate security risks of applications, APIs, infrastructure, etc. and all digital assets.

What does Managed Security Testing include?

Services may include penetration tests, vulnerability assessment, application security testing, API security testing, source code review, security assessment, vulnerability validation and retesting.

How frequently do you need to test security?

This frequency is based on the risk of the organization, the changes in applications, the regulatory requirements, and the development practices. Testing can be done on a regular basis or when there are major changes in applications or infrastructure.

Are vulnerability scanning and penetration testing the same?

No. Vulnerability scanning does not seek to identify vulnerabilities, but rather uses automated tools to detect potential vulnerabilities. However, penetration testing extends beyond this to employing controlled methods and human skills to determine if vulnerabilities can be exploited and how far they could go.

Is it possible to implement managed security testing in the SDLC?

Yes. Security testing may occur at various SDLC phases such as Code Review, Application Testing, API Testing, Pre-release Testing, Penetration Testing, and Post Remediation Retesting.

Secure Your Application Against attacks by Kualitatem

When security vulnerabilities are discovered only after an attacker has found them, they can cost you a lot of money. Managed Security Testing Services provide organizations with an active environment to find their security vulnerabilities, determine the actual risk and set a priority for remediation.

Through complete security testing and quality engineering services, Kualitatem assists organisations to bolster application security.

Interested in discovering vulnerabilities before security threats? Talk with Kualitatem about your security testing needs, and create a testing plan customized to your applications, risks and business objectives.