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The Black OnionElite Cyber SecurityProfessionals

Elite Offensive Security

Whether you're securing web applications, analyzing network traffic, or hunting for vulnerabilities, Black Onion premium security services make the whole cybersecurity experience the most comprehensive it can be.

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About Us

We are The Black Onion — an elite team of offensive cybersecurity professionals redefining digital defense.

Our expertise spans penetration testing, red teaming, exploit development, and CTF competitions, where we push technology to its limits. By thinking like attackers, we identify weaknesses before they become threats.

Our mission is to enhance global cyber resilience through research, innovation, and knowledge sharing. United by passion and precision, we explore the unseen layers of cyberspace to uncover hidden risks.

12

Team Members

11

Security Specializations

13

CTF Achievements

100%

Commitment

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Philosophy

Four core specializations that define our expertise

01

Cryptography

Deep expertise in cryptographic protocols, implementation, and vulnerabilities. We assess cipher strength, key management, and identify weaknesses in cryptographic implementations.

02

Web Security

Comprehensive assessment of web applications and APIs. We identify vulnerabilities including injection attacks, authentication bypass, CSRF, XSS, and advanced web exploitation techniques.

03

Reverse Engineering

Advanced analysis of binary code, malware, and proprietary systems. We dissect compiled code to understand functionality, identify vulnerabilities, and develop exploits.

04

Binary Exploitation

Expert-level buffer overflow, format string, and other low-level exploitation techniques. We push the boundaries of system security through advanced pwn challenges.

The Black Onion team at cybersecurity event
Team collaboration — Where expertise meets innovation
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Expertise

Core security specializations

Our team brings deep expertise across multiple security disciplines. Each specialization reinforces our collective capability to identify and remediate threats across the attack surface.

The Black Onion team members collaborating on security projects

Advanced gathering of publicly available information about targets. We use OSINT to uncover vulnerabilities, identify attack surfaces, and conduct comprehensive reconnaissance.

  • Domain enumeration
  • Social media analysis
  • Data leak investigations
  • Infrastructure mapping

Incident response, malware analysis, and forensic investigation. We help organizations understand attack vectors and prevent future incidents.

  • Incident response
  • Malware analysis
  • Memory forensics
  • Evidence preservation

Thorough evaluation of network architecture, segmentation, and access controls. We test firewalls, IDS/IPS, and network-based threats.

  • Network scanning
  • Firewall bypass
  • Access control testing
  • Lateral movement

Expert analysis and creation of steganographic content. We hide data in images, audio, and other media to understand concealment techniques.

  • Image steganography
  • Audio steganography
  • Covert channels
  • Detection evasion
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Achievements

CTF Excellence & Competition Success

Our competitive achievements demonstrate our team's expertise in cybersecurity challenges and advanced problem-solving across national and international competitions.

2ndPlace

MayaCTF 2023

CTF Competition
4thPlace

National Antrajal 2023

National Competition
7thPlace

SMP CTF 2024

CTF Competition
7thPlace

Invisible CTF 2023

CTF Competition
13thPlace

WTISD Hackathon 2025

Hackathon
15thPlace

Flag Hunt 2023

CTF Competition
22ndPlace

BDSec CTF 2025

CTF Competition
24thPlace

BCS ICT FEST 2025

ICT Festival
26thPlace

MIST LeetCon 2023

Programming Contest
27thPlace

Bugcrowd x Black Hat CTF USA 2025

International CTF
29thPlace

Phoenix CTF 2025

CTF Competition
37thPlace

THM Industrial Intrusion CTF 2025

Industrial CTF
68thPlace

KnightCTF 2025

CTF Competition
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Project Work

1

CTF Organized

2

Workshops

5

Events Hosted

Our Elite Team

Meet the cybersecurity experts pushing the boundaries of digital security.

Nesar Uddin Dawood

Nesar Uddin Dawood

Founder / Team Lead | Digital Forensic Analyst | C|SCU | CNSP | CAP | DFE | CNSS | CCEP | NSE-1, NSE-2 | CCNA | MTCNA, MTCRE

Md Amanat Ullah

Md Amanat Ullah

Team Advisor | Cyber Security Engineer | CEH Practical | CAP | CNSP | ISO 27001 Lead Auditor

MD AB Momin

MD AB Momin

Co-Founder | Penetration Tester | CAPv2 | CNSP

Zabed Ullah Poyel

Zabed Ullah Poyel

Management Lead | Penetration Tester | CAP | CNSP | CEHPT | CCEP | CWAP | CAPIE | EHE

AaRiz Rahman

AaRiz Rahman

Web Penetration Tester | CNSP | CCEP

Morakib Hossain

Morakib Hossain

Reverse Engineer

Subaita Maryam

Subaita Maryam

Security Analyst | CAP | CNSP | ISO/IEC 42001:2023 | CCEP | FCA | EHE | DFE | NDE | CPTAV2

MD Zidan Khan

MD Zidan Khan

Digital Forensic Analyst

Shahriar Hasan

Shahriar Hasan

Web Penetration Tester | CNSP | CBP | CAP | CCEP | EHE

Anik Sutrodhar

Anik Sutrodhar

Web Penetration Tester

Mahir Shahriar Tanshen

Mahir Shahriar Tanshen

Backend Developer

Umma Morium Sathi

Umma Morium Sathi

Web Penetration Tester | CCEP

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Contact

Get in touch with The Black Onion

Interested in our security services? Have a vulnerability to report? Want to collaborate on cybersecurity research? Reach out to our team.