Peneto Labs: Penetration Testing Services

External Penetration Testing

Your internet-facing infrastructure is exposed every day — to scanners, bots, and human adversaries. At Peneto Labs, we simulate real-world external threats to find and fix exploitable vulnerabilities before attackers strike.
  • Network Perimeter Testing 
  • Real-World Attack Simulation
  • Manual + Automated Testing
Free Call
Report
Consult us
Sample Report

We Understand the Risks of your Internet Facing IT Infrastructure

From exposed ports to misconfigured firewalls and unpatched applications, external systems are the most common entry points for attackers. A single overlooked weakness can lead to unauthorized access, data breaches, or full-scale compromise.
At Peneto Labs, we’ve conducted external security testing for global brands across finance, tech, and critical infrastructure. Our security engineers use industry-recognized techniques and certifications (OSCP, OSCE, GPEN, CEH) to uncover threats that automated scanners miss.

Comprehensive Perimeter Coverage

Real-World Attack Emulation

Manual + Automated Testing

CERT-In Empanelled

Consult us

What’s at Risk Without External Testing

  • Unpatched System Breached
  • Firewall Misconfiguration Exploited
  • Admin Panel Exposed
  • Customer Data Leaked Publicly
  • Backend Access Compromised
  • Cloud Storage Infiltrated
Consult us

Our External Pentesting Includes

We don’t just scan and report — we dig deeper to reveal exploitable weaknesses in your external infrastructure. Our testing is aligned with CERT-In Guidelines, PTES and OSSTMM methodologies to ensure accurate, actionable results.

External Footprint Enumeration

Firewall & ACL Bypass Testing

SSL/TLS Misconfigurations

Public-Facing Service Exploitation

Remote Access & VPN Testing

Open Port & Protocol Misuse

Authentication & Password Attacks

Misconfigurations in Cloud Services

Real-World Exploitation Outcomes

We test from the outside-in, just like an attacker would—mapping, probing, and exploiting to show how far a breach could go.
Consult us

Process

Our Testing Process

01

Discovery & Scoping

We define the scope, assets in focus (domains, IP ranges, cloud entry points) and business objectives to ensure focused, risk-aligned testing.

02

External Testing

We simulate external attacks to identify vulnerabilities, assess exploitability, and map potential attack paths—aligned with standards.

03

Reporting & Retesting

You receive a business-friendly report with PoCs and fix recommendations. We re-test after your fixes at no additional charge.

Consult us

What You’ll Receive?

We expose perimeter threats that matter and report them in a way your teams can act on. From firewall misconfigurations to DNS risks, we tie technical issues to real-world business impact.

  • Executive Summary for Management 
  • Technical Report with Prioritized Risks 
  • Remediation Guidance for Technical Teams 
  • Proof-of-Concepts for Key Findings 
  • Free Re-Test Post Remediation 
  • CERT-In Compliant Audit Certificate 
Download Sample Report

Client Testimonials

Some words from our clients

Image Not Found
Image Not Found Image Not Found

We recently partnered with Peneto Labs

to conduct vulnerability and penetration testing on our IT infrastructure, and we couldn't be more satisfied with the experience. From beginning to end, their team showed outstanding expertise and professionalism. They delivered a comprehensive report filled with actionable recommendations and provided multiple solution walkthroughs. Their guidance was instrumental in resolving issues, ultimately helping us obtain an audit certificate. This certificate was crucial for achieving compliance with our client. We highly recommend Peneto Labs penetration testing services.

CEO

Anniyam Payment

We can say with confidence

that Peneto Labs are a team of highly skilled and dedicated professionals who have always provided excellent and prompt IT security auditing services which helped us to closing the security gaps in our organisation and prevent compromise.

Dokonally

We’ve been working with Pentolabs

for our VAPT needs and we are happier with their services. They’re professional, efficient and have helped us improve our security posture of the application & infrastructure significantly. Their source code reviews are especially helpful in identifying vulnerabilities. Highly recommended.

Technical Architect

Axlerate Futuretech

The Phishing email services

offered by Pentolabs have been excellent which is an essential part of Cyber Security awareness which was very effective to understand for the security managers on how people react to such emails. I personally recommend it to anybody who wants to increase their Cyber threat awareness. An Ideal and a must for all employees in the organization. Thank you Pentolabs

Senior Manager - Cyber Security & BCP

National Commodity Clearing Limited

We have been conducting security assessments

for the 14 years. However, Peneto Labs expertise, Methodology, and reporting are world class. No reports from our past vendors match their quality & skills. They have done a wonderful job.

Manager

IT. String Information Services

The team at Peneto Labs are highly trained

, extremely knowledgeable, professionals who have assisted us in the successful installation of our firewall. Peneto Labs is an amazing company who has always been a fantastic support for our business. They are fast, reliable, friendly and helpful, and always available in case of an emergency. The staff are really experienced and we would not hesitate to recommend them highly to any business

I.T Head

Expertus
Geojit (1)
federal-bank (1)
aditya-birla-capital (1)
karur-vysya-bank (1)
dhanlaxmi-bank (1)
axis-finance (1)
m2p-fintech
photon
manappuram
latentview
hexagon
ncdex

Secure Your Public-Facing Assets —
Before They’re Targeted

Your external systems are constantly exposed. Without proper testing, vulnerabilities can go undetected until it’s too late. Our external penetration testing gives you peace of mind and a clear path to reducing your attack surface.
Please enable JavaScript in your browser to complete this form.

Frequently Asked Questions

External penetration testing is a security assessment that simulates real-world cyberattacks from outside your organization’s network. It targets publicly accessible assets such as websites, web servers, mail servers, firewalls, and exposed IPs to identify security vulnerabilities. 

This test is important because it helps you understand how an external attacker might exploit weak spots to gain unauthorized access, steal data, or disrupt services. At Peneto Labs, we use industry-proven techniques to uncover threats before malicious actors do.

External penetration testing uncovers a range of vulnerabilities that may exist in your internet-facing systems. These include outdated software, exposed ports, weak encryption, misconfigured DNS, insecure login portals, and missing security headers. 

It also identifies potential entry points for brute force attacks, SQL injection, or cross-site scripting. By addressing these risks, your organization can significantly reduce the chances of a successful cyberattack.

Any business that operates websites, cloud applications, email servers, or other internet-facing services needs external penetration testing. It is especially crucial for companies that handle sensitive data, conduct online transactions, or fall under cybersecurity compliance requirements. Whether you're a startup or a large enterprise, this test ensures your public-facing infrastructure is secure and resilient against external threats.

At Peneto Labs, our external penetration testing process begins with reconnaissance to gather public information about your infrastructure. We then perform vulnerability scanning, manual exploitation, and post-exploitation analysis to assess the risk and potential impact. 

Our methodology aligns with international standards such as OWASP, PTES, and NIST. After testing, we provide a full report with actionable insights and help your team prioritize remediation steps.

No, our testing is designed to be safe and non-disruptive. Peneto Labs conducts external penetration tests in a controlled manner that avoids interrupting your live services. 

We coordinate with your team to define safe testing windows, scope exclusions, and system sensitivity before the engagement begins. Our goal is to provide maximum security insight without affecting your business continuity.

 External penetration testing should be performed at least once a year. However, if you frequently update your public-facing applications, launch new services, or undergo infrastructure changes, more frequent testing is recommended. Regular assessments ensure that new vulnerabilities are identified and resolved before they can be exploited by attackers.

The duration of an external penetration test depends on the number and complexity of assets being tested. A small environment may take 2 to 4 days, while larger setups with multiple domains, subdomains, and services may require 1 to 2 weeks. Peneto Labs provides an estimated timeline after the initial scoping discussion to ensure transparency and efficient planning.

Once the test is complete, you’ll receive a comprehensive report that includes an executive summary, technical findings, risk ratings, and detailed remediation steps. 

The report clearly explains each vulnerability, how it could be exploited, and the impact it could have on your organization. We also offer a debrief session with our security experts to review the findings and support your remediation efforts. If needed, a follow-up retest can be arranged to validate the fixes.

 External penetration testing is priced based on the number of domains, subdomains, IP addresses, and exposed services. If you're testing just one public-facing application, the cost is lower than for testing multiple web servers or cloud-hosted assets. We offer transparent pricing based on risk level and testing scope.