Penetration Testing Services

Expert-Led Penetration Testing

We uncover high impact vulnerabilities, and help you fix them.

No generic templates. No junior handoffs. 
Just deep testing, clear remediation, and a team that stays with you until it’s resolved.

Secure your systems. Protect your business.

Types of Penetration Testing We Offer

Our penetration testing spans your full attack surface — applications, APIs, mobile, networks, cloud, infrastructure, and business logic. Whether driven by compliance, client demands, product changes, or proactive security goals, we tailor each engagement to your trigger and timeline. The outcome is always the same: clear risk visibility and actionable remediation.

Web Application Penetration Testing

Identify injection flaws, authentication weaknesses, misconfigurations, business logic issues, and critical vulnerabilities across modern web applications.

AI Penetration Testing

Assess AI systems and machine learning models for adversarial attacks, prompt injection, data poisoning, model manipulation, and security control weaknesses.

Cloud Penetration Testing

Uncover misconfigurations, privilege escalation paths, exposed services, insecure IAM policies, and security gaps across AWS, Azure, and GCP environments.v

API Penetration Testing

Detect broken access controls, authentication bypass, excessive data exposure, rate-limit issues, and injection vulnerabilities in REST and GraphQL APIs.

Mobile Penetration Testing

Expose security flaws in iOS and Android applications, including insecure storage, authentication weaknesses, encryption issues, and backend API risks.

Network Penetration Testing

Simulate internal and external attacks to identify unpatched systems, weak configurations, lateral movement paths, and network exposure risks.

Red Team

Conduct full-scale adversary simulations to evaluate detection capabilities, response readiness, employee awareness, and overall organizational resilience.

What Makes GRSee Different

Deep business logic testing that goes beyond automated scans to uncover the vulnerabilities that actually matter to your business.

Senior experts involved throughout the entire engagement, from scoping to final review. No junior handoffs, no surprises.

Clear, risk prioritized findings with actionable remediation guidance so your team knows exactly what to fix and in what order.

White glove partnership until resolution, not just a report drop. We stay with you until every finding is addressed.

Structured, transparent engagement with clear timelines, regular communication, and full visibility into the process.

PT METHODOLOGY

Resources

Cybersecurity

January 27, 2026

What Is Penetration Testing?

Penetration testing evaluates how systems hold up against real attacks. It uncovers exploitable weaknesses before attackers do.

Data Protection

January 26, 2026

What Is Penetration Testing in Cybersecurity: Benefits & Importance

Learn what penetration testing in cybersecurity is and how it helps identify vulnerabilities to protect your systems and data.

White Box Testing

January 21, 2026

White Box Pentesting: Is It Right for Your Business?

White box penetration testing, in contrast to a completely blind black box pentesting, gives testers full access to an

Frequently Asked Questions

What is penetration testing?

Penetration testing is a controlled security assessment where ethical hackers simulate real-world attacks against your systems, applications, or infrastructure to uncover vulnerabilities before attackers do.

Unlike automated scans alone, penetration testing goes deeper. It validates whether weaknesses are actually exploitable and shows you the real business risk behind them.

What’s the difference between a penetration test and a vulnerability scan?

A vulnerability scan is automated and designed to identify known issues at a high level. A penetration test combines automation with manual testing by experienced security professionals who actively investigate, validate, and attempt to exploit weaknesses.

In simple terms: a scan tells you what might be wrong. A penetration test shows you what could actually be used against you.

Why does my company need a penetration test?

Most companies get a penetration test for one or more of these reasons:

To identify exploitable weaknesses before attackers do
To meet client, regulatory, or audit requirements
To validate security before a product launch or major release
To reduce business risk and protect sensitive data
To give leadership and customers confidence in the security of their environment

For many SaaS, fintech, health tech, and AI companies, penetration testing is also a trust signal during procurement and vendor reviews

How often should penetration testing be done?

At minimum, penetration testing should usually be performed annually. It should also be done after major changes, such as:

New product launches or major feature releases
Significant infrastructure changes
Cloud migrations
Authentication or access control changes
Mergers, acquisitions, or major architecture updates

If your environment changes often or you operate in a high-risk space, more frequent testing may make sense.

What types of penetration testing do you offer?

GRSee supports several types of penetration testing, including:

Web application penetration testing
API penetration testing
Mobile application penetration testing
Network penetration testing
Cloud penetration testing
AI penetration testing
Red team engagements

Each engagement is tailored to the environment and business risk, rather than using a one-size-fits-all checklist.

What makes GRSee’s penetration testing different?

We go beyond scanner-based testing.

Our team focuses on uncovering business logic flaws, complex attack paths, and high-impact weaknesses that automated tools and lower-touch vendors often miss. We combine strategic automation with deep manual testing, then deliver clear remediation guidance your team can actually use.

Do you only look for technical vulnerabilities?

No. We also look for weaknesses in workflows, permissions, business logic, integrations, and real-world abuse paths.

That matters because some of the most serious issues are not simple CVEs or scanner findings. They come from how a system behaves in practice.

Will a penetration test disrupt our business?

A well-run penetration test should be carefully planned to minimize disruption.

We coordinate with your team in advance, define rules of engagement, and use controlled testing methods. If needed, testing can often be performed in staging or lower environments instead of production.

How long does a penetration test take?

Most penetration tests take 2 to 6 weeks, depending on the number of assets, scope, and complexity of the environment. Simpler tests may move faster, while more complex environments or multi-surface assessments take longer.

What do you need from us before testing starts?

For a smooth engagement, we typically need:

Clear scope of what should be tested
A point of contact from your team
Access details, if authenticated testing is included
Testing windows or operational constraints
Any specific business concerns or high-risk areas you want us to focus on

We guide this process closely so your team is never left guessing. That’s part of our white-glove approach.

Do you provide a report after the test?

Yes. You receive a detailed report with validated findings, business impact, severity ratings, evidence, and prioritized remediation guidance.

Our goal is not just to hand over a technical document. We want your engineering and leadership teams to clearly understand what matters, why it matters, and what to do next.

Are your findings actionable?

Yes. That’s a core part of our approach.

We prioritize clarity over noise. You get practical remediation guidance, not just a list of issues. Our reports are designed to help teams fix problems efficiently and improve security posture, not just satisfy a checkbox.

Do you offer retesting after fixes are made?

Yes. We provide retesting to verify that vulnerabilities have been properly remediated and that fixes are effective before findings are closed.

Can penetration testing help with compliance?

Yes. Penetration testing often supports frameworks and client requirements such as PCI DSS, SOC 2, ISO 27001, HIPAA, and others.

It can also strengthen audit readiness by validating that controls are working in practice, not just on paper.

Do you test for APIs, business logic, and modern application risks?

Yes. In many engagements, those are exactly the areas where the highest-impact weaknesses show up.

We test beyond surface-level issues and pay close attention to authorization flaws, workflow abuse, API exposure, privilege escalation, sensitive data access, and other issues that affect how your business actually operates.

What happens after the penetration test is complete?

We walk you through the findings, answer questions, and support your remediation process.

Unlike firms that disappear after delivery, our model is built around long-term partnership and ongoing support when needed.