Berezha Security Group (BSG)
Application Security & Penetration TestingBerezha Security Group is a cybersecurity consulting firm specializing in all aspects of application security, infrastructure and social engineering penetration testing, cybersecurity consulting, and professional training.
Since its founding in 2014, Berezha has delivered over 120 projects for more than 80 clients worldwide. We have customers in all major business sectors, including IT services, software products, banking, fintech, retail, healthcare, media, gaming, consulting services, legal and advisory, and more.
Using our offensive mindset and attack experience, we help our customers develop a mindful approach to cybersecurity and integrate security principles into all aspects of their business.
All mid- and senior-level BSG professionals hold prestigious cybersecurity certifications and most are OSCP-certified. Our professional certificates independently prove our ability to provide expert-level application security, penetration testing, and security consulting services.
We know that you will never accept the amount of security we want for you; we get that. But to let you make well-informed security decisions, we are always upfront and transparent in our communications and provide you with the most accurate view of your security posture.
Berezha Security Group has built a solid client base in the following business verticals:
- Software Development
- FinTech
- Financial Services
- Media
- Retail & FMCG
- e-Commerce
- Healthcare
- Gaming
- Telecommunications
- Oil & Gas
- Other


- IT Services
- Testing Services
- Small Business(< $10M)
- Medium Business($10M - $1B)
- Large Business(> $1B)
- Information Technology
- Banking
- Financial & Payments
- Business Services
- Healthcare & Medical
- Productivity
- Education
- Legal & Compliance
- Retail
- E-commerce
- Manufacturing
- Oil & Energy
- Telecommunication
- Transportation & Logistics
- Other
Penetration testing project
An excellent approach to the project.
Good communication with the project development team. Quick understanding of the essence of the application and its potential vulnerabilities.
An excellent approach for conducting threat modeling for an application in conjunction with the development team.
An informative report as well as real recommendations for mitigation the vulnerabilities found.
I recommend this company to any business looking for cybersecurity consulting.
Network and social engineering
We appreciate professional communications, cybersecurity, and engineering skills, along with their efforts within these projects. Detailed reports contain easy to understand thread model, evidence, and all the necessary recommendations about how to fix findings. They also provide free re-test in 60 days.
Security assessment

I am a co-founder and act as CEO since May 2021. At BSG I am responsible for our growth and customer success.
Penetration Testing services 10%.
Cybersecurity consulting 9%.
Professional training 5%.