b01lers CTF
b01lers CTF is the public competitive CTF hosted by the b01lers CTF team at Purdue University. Join our discord at discord.gg/tBMqujE and look out for further info soon!
left until b01lers CTF ends.
- During the competition, each person may only be a part of one team total, and only members of a given team may assist in solving a challenge for that team.
- Each team must have a valid email address that should serve as the point of contact.
- There is no limit on team size, and teams can be from anywhere.
- Flags are of the format
bctf{[ -~]+}unless otherwise noted on the challenge description. No brute-force guessing flags. - No flag or hint sharing. Do not solicit or accept hints or guidance from any person except through official support channels.
- Do not attempt to attack or interfere with other teams or any servers used in this competition that are not explicitly designated for being hacked in a problem.
- Do not perform any sort of online bruteforce against any of our systems.
- Learn as much as you can, and have a good time!
- Pay it forward.
There will also be a $100 prize for the top 5 challenge writeups submitted after the competition.
Prize transfers can only be arranged with entities in the United States.
Zellic
Zellic is a security research firm. We hire top CTF talent to solve the world's most critical security problems. We specialize in ZKPs, cryptography, web app security, smart contracts, and blockchain L1/L2s. Before Zellic, we previously founded perfect blue, the #1 CTF team in 2020 and 2021. You're a good fit for Zellic if you have extensive real-world experience in vulnerability research (VR) / binary exploitation, reverse engineering (RE), cryptography, or web application security. We hire internationally and offer competitive salaries and a comprehensive benefits package.
To learn more about Zellic, check out our blog: https://www.zellic.io/blog/the-auditooor-grindset
Work at Zellic: [email protected] | @gf_256
OtterSec
OtterSec secures critical blockchain infrastructure — from custom compilers to novel virtual machines, we review a wide range of difficult targets. Our team consists largely of CTF players that enjoy solving hard problems. If that sounds like you, please apply through our careers page.
Caesar Creek Software
Caesar Creek Software works with various government agencies to perform cyber research into major operating system platforms, software security products, personal computers, cell phones, networking equipment, and IoT devices. We specialize in offensive information operations, reverse engineering, vulnerability analysis, and exploit development. We have a robust Internal Research and Development program that lets us do cool stuff on our own. If it has a processor, we love taking it apart to see what makes it tick. We offer a highly competitive compensation package including one of the best benefit packages in Ohio and starting in 2019 we are an employee-owned company. U.S. citizenship is required for all positions, as well as the ability to obtain a high-level security clearance.
Blackwired
Blackwired's solutions are designed to shield what matters most to your organization. Our cyber solutions deliver enterprises, governments, and managed service providers an unparalleled balance of security and value. ThirdWatch, a Blackwired solution, provides an intuitive, real-time command center that maps Direct Threat Risk Management while consolidating and prioritizing attack vectors. Designed for rapid decision making, it transforms complex security data into a refined, actionable visual interface, ensuring you stay ahead of emerging threats with unmatched clarity and control. Unlike traditional security solutions that rely on intrusive scans or reactive measures, ThirdWatch monitors potential hazards in real-time, providing organizations with preventative and comprehensive 360° and 3D visualization of their risk exposure.
