Prove Yourself And Grab a Spot Among the Elite
All you need to do is prove yourself. Take on the challenges and conquer them all to show us your mettle, and claim your spot among the elite!
NOTE: This Recruitment drive is only for upcoming freshers in the Amritapuri campus (’25–’29 batch). We are not recruiting Second years (Sem 3) or Third Years (Sem 5) students.
Countdown to Recruitment:
Active From: July 14th, 2025 Onwards
Resources
$ > Linux Setup
Setting up your system — you have 3 options:
WSL (Windows Subsystem for Linux)
Just a Linux terminal inside Windows.
Depending on your domain, dual boot may be needed later.
Dual Boot
Boot into Linux or Windows with full GUI.
Virtual Machine (VM)
Run full Linux inside Windows.
$ > Linux Command Line
$ > Installing Packages
Each distro uses different package managers. Learn the differences here:
Package Manager Comparison Video$ > Practice Challenges
https://cmdchallenge.com$ > Practice CTFs
- What is CTF?
- CTF Intro Video
- PicoCTF – Beginner Challenges
- Search for writeups if you're stuck.
About bi0s
Team bi0s is a community of passionate college students, striving to make the world a safer place through security research and excellence in CTF competitions. Areas of focus include web security, forensics, reverse engineering, cryptography, hardware, and more.
We're actively involved in international CTFs and real-world security research. A strong mentorship structure ensures continuous learning and collaboration.
Founded in 2008 by our mentor Shri Vipin Pavithran, bi0s has grown into one of India's leading CTF teams. The team thrives under the guidance of senior members, alumni, and faculty—all led by student initiative.
What We Do
bi0sCTF consistently ranks as the top CTF team in India (CTFtime since 2016). Read our blog →
Beyond CTFs, our members conduct security research, discovering vulnerabilities in virtualization software, CMS platforms, OS components and more.View research →
bi0s is more than just flags. We host alumni meetups, game nights, and sports sessions. Even during online semesters, we’ve stayed united and active—both socially and technically.
