about us

Beyond Protection —
We Deliver Peace Of Mind.

At Big3 Infosec, we don’t just protect systems — we protect businesses. In a world where cyber threats are constantly evolving, we empower organizations to stay secure, resilient, and ahead of attackers.

Our approach is built on proactive defense, continuous monitoring, and unmatched expertise. Backed by a team of certified security professionals, we work as an extension of your business — detecting risks before they strike, defending what matters most, and ensuring your digital trust remains unshakable.With Big3 Infosec, you’re not just investing in cybersecurity — you’re investing in confidence, continuity, and peace of mind.

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3+

Year of experience in cyber security

4

Businesses Secure

100%

Client Retention Rate

10+

Hall Of Fame

our services

Custom Services For Your Business

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Vulnerability Assessment

Identify, analyse, and prioritise security gaps across your systems and applications to reduce risks before attackers exploit them.

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Penetration Testing

Simulate real-world cyberattacks to uncover hidden vulnerabilities and strengthen your defenses against evolving threats.

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24/7 Managed SOC

Round-the-clock threat monitoring, detection, and response to ensure your business stays protected — anytime, anywhere.

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Red Team Assessment

A realistic, adversary-simulated attack to test your organization’s security posture and uncover weaknesses before hackers do.

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Security Architecture Design

Build a scalable, cost-effective, and robust security framework tailored for small and medium-sized enterprises.

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IT & ISMS Audit (27001)

Comprehensive audits to ensure compliance, identify security gaps, and strengthen governance across your IT infrastructure.

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WHY CHOOSE US

Precision in Security.
Commitment in Delivery.

Cyber threats are evolving — your defenses should too. Businesses trust Big3 Infosec to stay secure, resilient, and ahead of cyber risks.

  • Certified experts with proven industry experience
  • Proactive threat detection and rapid response
  • Tailored security solutions for every business
  • 24/7 monitoring and dedicated support
  • Strong focus on trust, compliance, and resilience
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Our Security Operations

  • VAPT
  • Risk Assessment
  • 24/7 Manage SOC
  • Security Architecture Design
  • Email Protection
  • Red Team Assessment

TESTIMONIALS

Clients From Tech Industry Say About Us

MD.Shamiul Islam Shopnil

CTO – Relaxy Limited

Professional, reliable, and highly skilled — their VAPT service added real value to our security posture.

Imran Hossain

Sr. Engineer- WPPOOL Limited

Their penetration testing was thorough and revealed vulnerabilities we never knew existed.

MD.Shamiul Islam Shopnil

CTO – Relaxy Limited

The team provided detailed insights and practical solutions, not just a report.Wish them good luck.

Api Islam Apu

Co-Founder

Big3 Infosec helped us strengthen our defenses and meet compliance requirements with ease.

Imtiaz Ahmed

CEO,Izzah Technologies

Big3 Infosec’s VAPT service gave us a clear picture of our security gaps and how to fix them effectively.

FAQS

What services does Big3 Infosec provide?

We offer end-to-end cybersecurity solutions including vulnerability assessment, penetration testing (VAPT), 24/7 SOC monitoring, red team assessments, IT & ISMS audits, and dark web monitoring, PCI-DSS

Why does my business need cybersecurity services?

Cyber threats are constantly evolving, and businesses of all sizes are targets. Our services help you detect vulnerabilities, defend against attacks, and stay compliant with industry standards.

Do you offer 24/7 monitoring?

Absolutely, we provide 24/7 monitoring through our Managed SOC services.
Our dedicated team keeps watch around the clock, detecting threats in real time and ensuring rapid response to protect your business.

Do you work with small and medium businesses (SMEs)?

Yes. We provide scalable and cost-effective cybersecurity solutions designed to meet the unique needs of SMEs as well as large enterprises.

Can you customize services for our industry?

Absolutely. Our experts tailor every engagement based on your business size, industry, and regulatory requirements to ensure maximum protection.

Do you provide security audits?

Yes, we provide all comprehensive IT and ISMS security audits.
Our audits help identify gaps in your policies, processes, and controls to ensure compliance with international standards and industry best practices. We deliver actionable insights to strengthen your organization’s overall security posture.(ISO,SWIFT,PCI-DSS)

Can you train our staff on cyber safety?

We can. we offer cybersecurity awareness and training programs.
Our experts educate your staff on best practices, phishing detection, and safe online behavior to minimize human-related security risks.

How is Big3 Infosec different from other providers?

We combine certified expertise, real-world experience, and tailored security strategies to deliver results that truly strengthen your business security.

What industries do you serve?

We serve clients across finance, healthcare, IT, e-commerce, manufacturing, and many other sectors that demand strong cybersecurity.

How can I get started with Big3 Infosec?

Simply reach out to us through our contact form or email. Our team will schedule a consultation to understand your needs and recommend the right solution.

Are You Ready for the Best Cyber Security Experience?

We’re confident you’ll be 100% satisfied With Our Awesome Services!

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