Scaling Security with Modern PTaaS: Gartner Report Insights

The Gartner® Innovation Insight: Penetration Testing as a Service report reinforces what many security leaders are experiencing firsthand. 

Traditional penetration testing models often prove too slow and infrequent to effectively manage a dynamic threat landscape. This is where penetration testing as a service (PTaaS) stands out. “PTaaS delivers continuous, scalable security testing via a combination of automation and human expertise and is available through on-demand and subscription models. Security and risk management leaders should evaluate PTaaS as a potential alternative or complement to traditional penetration testing, particularly for organizations pursuing CTEM.” By moving away from project-based engagements toward on-demand or subscription models, organizations gain security that evolves alongside their systems. It identifies and addresses risks in real-time rather than waiting for the next scheduled assessment.  

PTaaS in the Modern Era 

At its core, PTaaS aligns closely with Continuous Threat Exposure Management (CTEM) and modern DevSecOps practices. Security is no longer a periodic checkpoint, but rather an ongoing process embedded into development and operational workflows.  

Gartner research suggests that PTaaS serves as a foundational component for these programs by offering dynamic scoping and real-time collaboration. The report includes significant strategic planning assumptions regarding the impact of this shift.  

• By 2028, remediation cycles will be twice as fast in organizations using PTaaS compared to those dependent on manual testing approaches. 
• By 2029, organizations adopting PTaaS will perform penetration testing up to five times more frequently than those relying on traditional methods.  

Integrating these services into DevSecOps workflows allows for more consistent security validation. This transition moves testing from a periodic, compliance-driven event to an ongoing process that reduces exposure windows. While traditional models deliver static PDF reports at the end of an engagement, PTaaS provides real time visibility into findings through a client web portal. This transparency enables security teams to address vulnerabilities as they are discovered rather than waiting for a final project wrap up. 

Every new cloud asset, API, or infrastructure change represents a potential blind spot. Continuous testing ensures coverage keeps pace, so that emerging risks are identified and remediated as they appear, not months later. This model supports CTEM strategies by reducing the window between vulnerability discovery and remediation. As highlighted in NetSPI’s perspective on CTEM, continuous validation is essential for managing dynamic attack surfaces. PTaaS transforms pentesting from a compliance-driven exercise into a proactive security capability.  

Why the Shift to Continuous Validation is Now a Strategic Necessity 

The findings within the Gartner Innovation Insight report suggest that the era of relying solely on periodic penetration testing is coming to a close. As attack surfaces expand and development cycles accelerate, the traditional project-based model creates significant security gaps that attackers can easily exploit. Moving toward a continuous validation model is no longer a trend for mature organizations but a baseline requirement for any team managing a modern digital environment. 

The strategic value of PTaaS lies in its ability to transform security from a series of disconnected events into a cohesive and ongoing process. By adopting a platform-driven approach, organizations can move away from the limitations of static reports and toward a model where findings are actionable the moment they are discovered. This proactive stance is essential for meeting the goals of a continuous threat exposure management program and ensuring that security remains a business enabler, not a bottleneck. 

Use Cases for PTaaS 

Security leaders are increasingly leveraging PTaaS across a variety of scenarios to improve their vulnerability management and overall security posture. Effective use cases include: 

1. Increasing Testing Frequency 

PTaaS allows companies to move away from annual testing to on-demand validation. This is particularly valuable in environments with frequent code releases or infrastructure changes.  

2. Support DevSecOps 

By integrating into development pipelines, PTaaS ensures vulnerabilities are identified and addressed earlier in the software development lifecycle, reducing cost and risk.  

3. Risk-Based Vulnerability Prioritization  

Not all weaknesses are equal. PTaaS platforms provide context, such as exploitability and business impact. This enables teams to focus on more important matters.  

4. Accelerating Remediation  

Unlike static PDF reports, penetration testing as a service delivers findings in real time through a centralized platform. This accelerates collaboration between security and engineering teams and reduces time to remediation.  

5. Compliance & Beyond 

While PTaaS can support compliance requirements, its true value lies in going beyond “check-the-box” testing to deliver continuous assurance and measurable risk reduction.  

Key Considerations When Choosing a PTaaS Provider 

While the benefits of PTaaS are clear, not all providers are created equal. Security leaders should evaluate potential partners carefully across several dimensions, including:  

Depth of Human Expertise 

Automation is critical, but it cannot replace skilled penetration testers. Look for providers that combine automation with experienced security professionals who can uncover complex, real-world attack paths.  

Platform Capabilities 

A strong PTaaS platform should provide:  

• Real-time visibility into findings 
• Workflow integrations 
• Clear remediation guidance 
• Collaboration features for security and engineering teams 

Breadth of Testing  

Ensure the provider supports a wide range of testing types, including application, cloud, network, and emerging areas like AI security.  

Risk Context & Prioritization 

Findings should be tied to business impact, not just technical severity. This enables better decision-making and resource allocation. 

Compliance Alignment 

Heavily regulated industries should confirm whether PTaaS meets audit requirements or if it needs to be supplemented with traditional testing.  

Evolve With the Cybersecurity Landscape 

As cybersecurity needs change, it’s vital your strategies follow suit. PTaaS represents a fundamental shift in how organizations approach penetration testing. By combining automation with human expertise, it delivers faster, more frequent, and more cost-effective security testing. More importantly, it ensures security evolves alongside your systems (continuously identifying and addressing risks rather than leaving your organization exposed between engagements). 

As we believe confirmed by Gartner and other industry analysts, PTaaS is quickly becoming a critical component of modern security programs. Security leaders striving to reduce exposure, improve efficiency, and stay ahead of emerging threats should know: the future of pentesting is continuous, integrated, and platform-driven.  

Download the full report to learn where PTaaS can transform your organization’s approach to risk and how NetSPI can help. 

Gartner Objectivity Disclaimer: 

Gartner, Innovation Insight: Penetration Testing as a Service [Mitchell Schneider, Dhivya Poole, Carlos De Sola Caraballo, William Dupre, Eric Ahlm] [3 October 2025] 

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