Learn. Hack.Defend.
Hands-on training, real-world CTF challenges, and expert-led labs to build your offensive and defensive security skills.
Our Services
We combine advanced technology with expert human intelligence to protect your digital assets and empower your team.
Host World-Class CTF Competitions.
Run engaging Capture The Flag competitions on our purpose-built platform. From university events to enterprise red-team exercises, we handle the infrastructure.
Fully managed platform with dynamic scoring
Automatic point decay, first-blood bonuses, and real-time scoreboards — all out of the box.
Custom challenge creation & categories
Web, pwn, crypto, forensics, reverse engineering — build and deploy challenges with our authoring tools.
On-demand lab environments
Docker-isolated boot-to-root instances spun up per player with automatic expiry and cleanup.
What do our students say?
Don't just take our word for it. Hear from the professionals we've trained.

Sara Abera
INSA Software Engineer & Penetration Tester
“Buna Byte provided a highly practical, well-structured learning experience focused on real-world skills. The hands-on approach strengthened my problem-solving ability and security mindset, supported by clear guidance from professional and motivating mentors. I highly recommend it to anyone serious about building strong technical skills.”

Fuad Mohammed
Hijira Bank, Information Security
“Buna Byte Cyber Security's Cyber Security for Beginners course gave me the confidence and skills to pursue a career in the field. A great starting point for anyone interested in cyber security.”

Hisnul Mohammed
Penetration Tester and Highschool Student
“Buna Byte Cybersecurity training has been an incredible experience for me as a self taught learner. It strengthened my foundation in ethical hacking, helped me understand real world security challenges and taught me how to think like a professional ethical hacker. The training is practical, clear and engaging giving students both the knowledge and confidence to explore cybersecurity more deeply.”

Abreham Abebe
Penetration Tester and Bug Hunter
“Buna Byte cybersecurity (BBCS) laid the foundation for my cybersecurity skills, providing hands-on labs and real-world scenarios that strengthened my technical and analytical abilities. I now work as a penetration tester, bug hunter on bounty programs, and ethical hacker, applying my skills to real-world security challenges.So Buna Byte was essential in starting my journey and preparing me for a professional career in cybersecurity.”

Melalew Mengistu
Penetration Tester
“Buna Byte Cybersecurity offers an outstanding learning experience that's very different from typical online courses. The instructors explain complex topics in a simple and engaging way, often using storytelling to make concepts easier to understand and remember. The training is practical, beginner-friendly, and highly supportive. I strongly recommend Buna Byte Cybersecurity to anyone looking to start cybersecurity with confidence.”

Caleb Abebe
Student
“I came in as a complete beginner, but now I have a clearer understanding of the field and know which paths to explore. It really opened my eyes to how I should approach cybersecurity. I`d definitely recommend it to anyone starting out!”

Habuson
Student
“The course was well-suited for beginners like me. While it is not possible to cover everything in one month, the training clearly showed me how to continue learning and exploring cybersecurity on my own. It helped lay a strong foundation and made the learning path clear. Thank you to the Buna Byte team.”

Sara Abera
INSA Software Engineer & Penetration Tester
“Buna Byte provided a highly practical, well-structured learning experience focused on real-world skills. The hands-on approach strengthened my problem-solving ability and security mindset, supported by clear guidance from professional and motivating mentors. I highly recommend it to anyone serious about building strong technical skills.”

Fuad Mohammed
Hijira Bank, Information Security
“Buna Byte Cyber Security's Cyber Security for Beginners course gave me the confidence and skills to pursue a career in the field. A great starting point for anyone interested in cyber security.”

Hisnul Mohammed
Penetration Tester and Highschool Student
“Buna Byte Cybersecurity training has been an incredible experience for me as a self taught learner. It strengthened my foundation in ethical hacking, helped me understand real world security challenges and taught me how to think like a professional ethical hacker. The training is practical, clear and engaging giving students both the knowledge and confidence to explore cybersecurity more deeply.”

Abreham Abebe
Penetration Tester and Bug Hunter
“Buna Byte cybersecurity (BBCS) laid the foundation for my cybersecurity skills, providing hands-on labs and real-world scenarios that strengthened my technical and analytical abilities. I now work as a penetration tester, bug hunter on bounty programs, and ethical hacker, applying my skills to real-world security challenges.So Buna Byte was essential in starting my journey and preparing me for a professional career in cybersecurity.”

Melalew Mengistu
Penetration Tester
“Buna Byte Cybersecurity offers an outstanding learning experience that's very different from typical online courses. The instructors explain complex topics in a simple and engaging way, often using storytelling to make concepts easier to understand and remember. The training is practical, beginner-friendly, and highly supportive. I strongly recommend Buna Byte Cybersecurity to anyone looking to start cybersecurity with confidence.”

Caleb Abebe
Student
“I came in as a complete beginner, but now I have a clearer understanding of the field and know which paths to explore. It really opened my eyes to how I should approach cybersecurity. I`d definitely recommend it to anyone starting out!”

Habuson
Student
“The course was well-suited for beginners like me. While it is not possible to cover everything in one month, the training clearly showed me how to continue learning and exploring cybersecurity on my own. It helped lay a strong foundation and made the learning path clear. Thank you to the Buna Byte team.”

Sara Abera
INSA Software Engineer & Penetration Tester
“Buna Byte provided a highly practical, well-structured learning experience focused on real-world skills. The hands-on approach strengthened my problem-solving ability and security mindset, supported by clear guidance from professional and motivating mentors. I highly recommend it to anyone serious about building strong technical skills.”

Fuad Mohammed
Hijira Bank, Information Security
“Buna Byte Cyber Security's Cyber Security for Beginners course gave me the confidence and skills to pursue a career in the field. A great starting point for anyone interested in cyber security.”

Hisnul Mohammed
Penetration Tester and Highschool Student
“Buna Byte Cybersecurity training has been an incredible experience for me as a self taught learner. It strengthened my foundation in ethical hacking, helped me understand real world security challenges and taught me how to think like a professional ethical hacker. The training is practical, clear and engaging giving students both the knowledge and confidence to explore cybersecurity more deeply.”

Abreham Abebe
Penetration Tester and Bug Hunter
“Buna Byte cybersecurity (BBCS) laid the foundation for my cybersecurity skills, providing hands-on labs and real-world scenarios that strengthened my technical and analytical abilities. I now work as a penetration tester, bug hunter on bounty programs, and ethical hacker, applying my skills to real-world security challenges.So Buna Byte was essential in starting my journey and preparing me for a professional career in cybersecurity.”

Melalew Mengistu
Penetration Tester
“Buna Byte Cybersecurity offers an outstanding learning experience that's very different from typical online courses. The instructors explain complex topics in a simple and engaging way, often using storytelling to make concepts easier to understand and remember. The training is practical, beginner-friendly, and highly supportive. I strongly recommend Buna Byte Cybersecurity to anyone looking to start cybersecurity with confidence.”

Caleb Abebe
Student
“I came in as a complete beginner, but now I have a clearer understanding of the field and know which paths to explore. It really opened my eyes to how I should approach cybersecurity. I`d definitely recommend it to anyone starting out!”

Habuson
Student
“The course was well-suited for beginners like me. While it is not possible to cover everything in one month, the training clearly showed me how to continue learning and exploring cybersecurity on my own. It helped lay a strong foundation and made the learning path clear. Thank you to the Buna Byte team.”

Sara Abera
INSA Software Engineer & Penetration Tester
“Buna Byte provided a highly practical, well-structured learning experience focused on real-world skills. The hands-on approach strengthened my problem-solving ability and security mindset, supported by clear guidance from professional and motivating mentors. I highly recommend it to anyone serious about building strong technical skills.”

Fuad Mohammed
Hijira Bank, Information Security
“Buna Byte Cyber Security's Cyber Security for Beginners course gave me the confidence and skills to pursue a career in the field. A great starting point for anyone interested in cyber security.”

Hisnul Mohammed
Penetration Tester and Highschool Student
“Buna Byte Cybersecurity training has been an incredible experience for me as a self taught learner. It strengthened my foundation in ethical hacking, helped me understand real world security challenges and taught me how to think like a professional ethical hacker. The training is practical, clear and engaging giving students both the knowledge and confidence to explore cybersecurity more deeply.”

Abreham Abebe
Penetration Tester and Bug Hunter
“Buna Byte cybersecurity (BBCS) laid the foundation for my cybersecurity skills, providing hands-on labs and real-world scenarios that strengthened my technical and analytical abilities. I now work as a penetration tester, bug hunter on bounty programs, and ethical hacker, applying my skills to real-world security challenges.So Buna Byte was essential in starting my journey and preparing me for a professional career in cybersecurity.”

Melalew Mengistu
Penetration Tester
“Buna Byte Cybersecurity offers an outstanding learning experience that's very different from typical online courses. The instructors explain complex topics in a simple and engaging way, often using storytelling to make concepts easier to understand and remember. The training is practical, beginner-friendly, and highly supportive. I strongly recommend Buna Byte Cybersecurity to anyone looking to start cybersecurity with confidence.”

Caleb Abebe
Student
“I came in as a complete beginner, but now I have a clearer understanding of the field and know which paths to explore. It really opened my eyes to how I should approach cybersecurity. I`d definitely recommend it to anyone starting out!”

Habuson
Student
“The course was well-suited for beginners like me. While it is not possible to cover everything in one month, the training clearly showed me how to continue learning and exploring cybersecurity on my own. It helped lay a strong foundation and made the learning path clear. Thank you to the Buna Byte team.”
Latest from Our Blog
Insights, tutorials, and updates from our cybersecurity experts.
WriteupsJebena-Leak CTF Writeup on BunaByte CTF
Walkthrough of Jebena-Leak on Buna Byte CTF — chaining IDOR, SSRF, internal port scanning, and PCAP analysis to capture the flag.
WriteupsRecognition Roulette — SSTI Filter Bypass Writeup
Bypassing blacklist filters to exploit SSTI and extract environment variables in the Recognition Roulette web challenge.
Lectures & WebinarsWeb Exploitation Basics
Learn the fundamentals of web exploitation — from SQL injection to cross-site scripting — and how to identify common vulnerabilities in CTF challenges.







