b01lers: Purdue Capture the Flag Club
We are b01lers, Purdue's premier CTF team. To get updates about upcoming events, please join our club discord and verify your Purdue email.
Schedule
On Fridays, we play in CTFs starting at 7:00pm in WALC 3121. If you are new, we host weekly topic sessions on Mondays from 7:00pm - 9:00pm covering how to approach different categories of CTF challenge.
| Event | Date/time | Location |
|---|---|---|
| Callout I | Sept 1, 7PM | PHYS 238 |
| Callout II | Sept 2, 7PM | FRNY G124 |
| First Friday meeting | Sept 4, 7PM | WALC 3121 |
| Topic Session: Intro to Computers | Sept 8, 7PM | HAMP 1144 |
| Topic Session: Reverse Engineering I | Sept 14, 7PM | HAMP 1144 |
| Topic Session: Reverse Engineering II | Sept 21, 7PM | HAMP 1144 |
| Topic Session: Binary Exploitation | Sept 28, 7PM | HAMP 1144 |
| Topic Session: Web Exploitation | Oct 5, 7PM | STEW 320 |
| Bootcamp CTF | Oct 17, 7PM | tbd |
| Advanced session: Sandbox Escapes | Oct 19, 7PM | HAMP 1144 |
| Advanced session: Cryptography | Oct 26, 7PM | STEW 320 |
| Advanced session: Hardware Explotation I | Nov 2, 7PM | STEW 320 |
| Advanced session: Hardware Exploitation II | Nov 9, 7PM | STEW 320 |
Fall 2026 Bootcamp Schedule
After we finish teaching the topic sessions, we will host a Bootcamp CTF where everyone can test the skills they have learned! The Bootcamp CTF has challenges for all difficulty levels, and it will be hosted on October 17 from 12pm - 7pm in person. The location has not been finalized, so stay tuned for more details.
About us
Welcome to the Purdue Capture The Flag Team! We are constantly learning and applying practical skills in web security, system security, reverse engineering, cryptography, and forensics to compete against other schools and teams in Capture The Flag competitions. You can find our global and national standings on CTFTime.
Capture The Flag competitions are a fun and safe way to measure your hacking skills against other teams (from other universities, private companies, or l33t underground teams). A contest typically consists of a list of challenges with points associated with them based on difficulty. These challenges are organized into categories, and you're rewarded with a flag if you correctly solve them. There are many ways to to solve and obtain 'flags' from each challenge, from decrypting a string to compromising a vulnerable system. Here is another description on what a CTF actually is and how it works.
Joining The Purdue Capture The Flag Team
Joining The Purdue Capture The Flag Team is extremely easy! Despite the highly technical skills we foster, we have no entrance requirements or prerequisite skills for joining the club. All you have to do is show up! We are more than happy to teach and assist if you put in the same effort to learn and practice! Anyone willing to attend, learn, and have fun trying their best at CTFs is welcome. See this year's schedule for more information.
We meet every Friday (excluding holidays) to compete in a live CTF event. If there is no CTF or the CTF starts on Saturday, we'll either plan for a non-CTF event, or announce that the meeting is rescheduled or canceled.
We do not tolerate hate, discrimination, or bad attitudes! If someone in the club is exhibiting behavior detrimental to other members or the team as a whole, they will immediately be removed from the team. Our target environment is jovial, meme-filled, and accepting. Anyone can hack. Furthermore, our code of conduct does not provide for offensive or illegal actions using the material used in our club. Our skills are developed for educational and research purposes only. For more questions, please see our disclaimer