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Penetration Testing Services

We provide internal and external network penetration testing services to examine your corporate infrastructure and systems and reveal any existing security vulnerabilities before attackers could exploit them.

Penetration Testing

The best way to uncover how malicious hackers might access your network is to let the penetration testing experts run a controlled attack simulation.

The certified BSG team's penetration testing services help companies reduce business risks, protect data and assets, and enhance protection against cybercriminals and malicious users.

Our reports contain actionable recommendations, steps to reproduce all found vulnerabilities, and data required to demonstrate the quality of assessment to your clients, management, and investors.

Penetration Testing Services

External Network Pentest

External Network Pentest

Penetration Testing and Red Teaming services for the organizations, ready for a realistic cybersecurity challenge. Test the performance of your defenses and check if your security investment paid off.

Internal Network Pentest

Internal Network Pentest

Infrastructure security testing services to discover the organization's IT infrastructure weaknesses available to an authorized user. Get an actionable roadmap for your cybersecurity posture improvement.

Social Engineering Pentest

Social Engineering Pentest

Application of human hacking techniques to measure your employees' defenses against cybersecurity threats. Test your staff's ability to detect and resist modern cyberattacks.

Work from Home Pentest

Work from Home Pentest

A fully remote penetration testing of a modern high-tech firm's infrastructure. Check if your fight against the COVID-19 pandemic did not open your organization to unexpected threats.

Project Details


Penetration test project takes from 2 to 6 weeks to complete.


From 2 to 4 experienced penetration testers.


Managed by the Pentest Lead coordinated by the Project Manager.

Suitable for

Suitable for

  • Any IT infrastructure
  • Private cloud
  • Dedicated data center
  • Public cloud application
  • Server, web, or mobile software
  • Corporate network
Applicable to

Applicable to

  • Meeting compliance and regulatory requirements
  • Finding and fixing security weaknesses in systems and processes
  • Lowering the risk of ransomware, data breaches, and malicious hacker attacks
  • Testing the Information Security Management System (ISMS) efficiency
  • Measuring the effectiveness of cybersecurity investment

Project Results

  • All critical security findings reported on-the-go
  • The report with all findings after the pentest is completed
  • Clear recommendations on how to fix the vulnerabilities
  • Vulnerability evidence, descriptions, and steps to reproduce
  • One free retest during the 60 days grace period

Why Choose BSG?


6+ years in business, 120+ projects for 80+ customers.

Free retests
Free retests

of all initial findings in all reports within 60 days.

15% discount

for all recurring types of services and training.

Certified professionals
Certified professionals


Professional insurance
Professional insurance

Worldwide professional liability coverage.

Manual assessments
Manual assessments

Intelligence and expertise over automated scanners.

Тop 10 Vulnerabilities

We discover during Penetration Testing


External and Internal Pentest

  • Learn how to become a harder target for hacking attacks
  • Test your organization’s cyber defenses by simulating a real-life cyberattack
  • Comply with PCI DSS and ISO27000 pentesting requirements
  • Fix the findings and get a free retest within 60 days grace period
  • Get a discount for all recurring services
Let us show you how we help similar companies

Everyone can get hacked. Hackers can compromise a large software vendor and a small online shop via the same security flaw. The question is, how do you want to learn about your security weakness: from a pentest report or from a newsflash?

Kyrylo Hobreniak


OSCP, Security Consultant


What is a penetration test?

A penetration test is a red-teaming exercise that allows organizations to measure their cybersecurity by running a controlled attack simulation. Qualified experts conduct the security assessment in a way that avoids unnecessary downtime or other business continuity issues. Several professional certification programs exist to attest to the skills and experience of qualified pentesters. To get an independent opinion, companies usually order penetration tests from external qualified service providers.

How is a penetration test different from a vulnerability assessment?

Although they provide similar results, vulnerability assessments are usually highly automated by the use of vulnerability scanners. As a result, their reports have many false positives and miss the areas where security assessment requires human intelligence and professional judgment. Vulnerability assessment is a crucial part of every organization's internal security program, while penetration tests are external to the organization, need special skills, and produce independent, higher-quality results.

Why do I need a penetration test?

Every organization that uses information technology needs cybersecurity. Some companies possess intellectual property or store and operate client data. Others rely on modern tech for automation and payment processing. Virtually every business uses email and connects to the internet. Malicious hackers can abuse every use of modern technology and harm your business. And penetration testing allows you to check if you are protected against these threats.

What is the difference between external and internal penetration tests?

Pentests can be internal or external depending on where the pentesters start from and what access permissions they have in the beginning. For instance, beginning with zero access from the external internet means that the pentesting is external. On the contrary, starting with default employee access from an office Wi-Fi implies an internal pentest. Starting positions and access levels vary depending on the pentest goals.

What is the difference between white-box and black-box pentests?

Pentests can be black-box, white-box, or grey-box. The box color depends on the amount of information that pentesters have in the beginning. For example, zero-knowledge implies that the scope is a "black box" to pentesters, and they have to go through all the reconnaissance steps to gain that knowledge. On the other hand, the white-box approach means that pentesters have full read access to all scope details, such as documentation, source code, or file systems. Finally, the grey-box approach balances these two extremes at a point where pentesters start with limited knowledge and permissions.

How to choose a penetration testing firm?

While selecting a professional penetration testing team, pay attention to the following crucial criteria: project deliverables, experience, credibility, and reputation. These points distinguish high-quality pentesting firms:

  • The ability to readily provide a sample pentest report demonstrates to you the example of possible project outcomes
  • Relevant professional certificates, such as OSCP, OSCE, GPEN, and GXPN demonstrate the team’s ability to deliver high-quality services
  • Excellent client references at Clutch, theManifest, GoodFirms or another similar resource, or the ones directly provided by the firm, allow you to verify their professional reputation
  • Professional liability insurance is an excellent addition to the above, as in this case the availability of your systems would be additionally protected by insurance
  • Contributing to the professional community, such as speaking and volunteering at industry conferences, arranging meetups and webinars, and sponsoring professional events

Do you guarantee that the penetration test will not harm my business?

The pentest goal is to improve security and not to ruin the operations. However, the pentesting methods cannot guarantee absolute safety because one cannot be sure how fragile the client's systems are.

We aim our pentesting efforts to reveal existing security issues without affecting our clients' business continuity while generating the least possible noise. We also have professional liability insurance in place: just in case, because, in fact, we never used it.

How penetration testing prevents ransomware attack?

Ransomware is booming as around 70% of all cyberattacks on the business end up holding their precious data for ransom. Unfortunately, when all your data is stolen or encrypted, it is way too late to protect it. In fact, the only way to prevent the dire consequences of cyberattacks is to fight tomorrow's security challenges – today. Penetration testing reveals existing vulnerabilities that may allow cybercriminals to attack your organization. By fixing these vulnerabilities, you make the malicious hackers' job hard enough that they decide to skip to another target. It is cheaper to harden your systems today than pay the ransom or recover everything from backups tomorrow.

How long does a pentest take, and what is the price?

An average penetration testing project takes about 3-4 weeks to complete; the report with all findings and recommendations comes during the following week. The pentest price depends on the scope size, e.g. how many systems, networks, and people are there.

BSG pricing is fully transparent: we do not charge any extra. Moreover, our service package already includes one free retest of all security vulnerabilities during the 60 days grace period. The project's pricing varies between 5000–20000 USD, with an average price tag being roughly 8000 USD. All our customers get a 15% discount for all recurring services.