bi0s Recruitment

NEO-TOKYO PROTOCOL v4.02 // AUTHORIZED USE ONLY

// TIMER_INIT
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COUNTDOWN ACTIVE
NODE::ALPHA TRACE::ACTIVE PACKET::DROPPED SYS::WATCH
SYS_LOG_OVERRIDE ACCESS_GRANTED_0x7F CORP_BLACK_PROJECT NEURAL_ROUTE_SIGMA REDACTED_PAYLOAD_19
SHOW US WHAT YOU CAN PROVE YOURSELF AND GRAB A SPOT

A full-width callout for the next bi0s recruitment cycle.

NOTE: This Recruitment drive is only for upcoming freshers in the Amritapuri campus (’26–’30 batch). We are not recruiting Second years (Sem 3) or Third Years (Sem 5) students.

JOIN BI0S RECRUITMENT 2026

Resources

WSL

Just a Linux terminal inside Windows.

Tutorial

Dual Boot

Boot into Linux or Windows with full GUI. Depending on your domain, dual boot may be needed later.

Tutorial Video

Virtual Machine (VM)

Run full Linux inside Windows.

Tutorial

Mac Setup

No need to install Linux. Just install Homebrew.

Tutorial Video

Installing Packages

Each distro uses different package managers. Learn the differences here.

Video

Practice Challenges

Small CLI puzzles to sharpen skills.

Cmd Challenge
01 / 4N6

System overload detected in neural framework. High probability of violent divergence. Monitor cognitive load immediately.

02 / WEB

Do not attempt breach. Beyond lies unmapped rogue intelligence constructs. Immediate terminal fried upon unauthorized ping.

03 / PWN

Securing your future, locking away your soul. Relic architecture integration phase 2 complete.

04 / REV

System inversion detected in the neural stack. Route the signal through a clean relay before the core destabilizes.

05 / CRYPTO

Encrypted payload locked behind adaptive key fragments. Decode the packet trail before the black ICE notices.

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 many other domains.

Founded in 2008 by our mentor Shri Vipin Pavithran, bi0s has grown into one of India's leading CTF teams.

Vipin

What We Do

bi0sCTF consistently ranks among the top Capture The Flag teams in India (CTFtime since 2016). Read our blog

Beyond CTFs, our members conduct security research, discovering vulnerabilities in virtualization software, CMS platforms, operating systems, web technologies and much more.

We are actively involved in international competitions, collaborative research, mentoring programs and workshops that help students grow into security researchers.

bi0s is more than just flags. We host alumni meetups, game nights, sports sessions and community events. Even during online semesters, we've stayed united and active—both socially and technically.