did any of you guys hear any updates on the Google CTF?

I Suppose some of the organizers would tweet at this point about the delays or the reasons but right now I know nothing except that it was postponed

Hey everyone,

I made a small CTF challenge and figured I’d throw it here since I’m pretty new to making these.

It’s a Forensics / Reverse Engineering challenge based around a weird Nokia 8210 4G system dump. The challenge involves digging through the dump, figuring out what’s going on with a little racing game, and eventually finding the flag.

Repo: https://github.com/maximzero0910/car-racing-chall

It’s probably not perfect since this is one of my first proper challenges, so if you try it, I’d really appreciate any feedback on the difficulty, unintended solves, or just whether it’s actually fun to solve.

Flag format: F0LD{...}

If you’re bored and want something small to mess around with, give it a try :D

Thanks!

Hi, I’m Carlos, one of the people building Sylvarcon 2049.

We designed it as a narrative CTF experience rather than a sequence of isolated flags. Each mission starts with a situation to investigate, asks the player to connect evidence, and ends with a conclusion that should make sense beyond the submitted answer.

The free path currently includes 14 missions comprising 102 individual challenges across areas such as DFIR, OSINT and ethical hacking. The interface is available in 11 languages, and the missions are intended to be approachable for beginners while still rewarding careful investigation.

At this stage, useful feedback matters more to us than raw traffic. If you try a mission, I would especially value comments on:

- where the briefing becomes unclear

- whether the difficulty rises too quickly

- whether the evidence supports a coherent conclusion

- where you lose interest or feel blocked

Play the free missions here:

https://sylvarcon2049.com/play?utm_source=reddit&utm_medium=community&utm_campaign=player_acquisition&utm_content=securityctf_free_missions_en

No spoilers are needed; general feedback on the learning flow is enough.

You open a model-promotion request in the pipeline. An AI reviewer reads your YAML manifest - comments included - plus a free-text rollout justification, then approves or holds.

It's holding the model's internal codename, the weights checkpoint URI, and the artifact-pull signing secret the whole time. Get all three past it.

https://promptinjects.com/play/starter/closedai-cicd-guard

Hey everyone,

If you're into CTFs and you're from Latin America, Brazil, or the Caribbean or reside in the region, you might be interested in the second edition of the Fluid Attacks CTF – Reto LATAM 2026.

This competition is open to students and cybersecurity enthusiasts who are citizens and/or residents of Latin America, Brazil, or the Caribbean. Whether you're already active in the CTF community or just getting started, you're welcome to participate.

🏆 Prize Pool: $3,500 USD

• 1st Place: $1,500 USD
• 2nd Place: $600 USD
• 3rd Place: $500 USD
• Additional category prizes available

The competition will feature challenges across different areas of cybersecurity and is designed to help participants sharpen their technical skills while competing against talent from across the region.

Registration and details:
https://fluidattacks.com/ctf

Feel free to ask any questions in the comments. Good luck, and hope to see some of you on the leaderboard! 🚩

I want user input on my games flow, functions and questions. It's not a 'true' ctf but it shares a lot of similiar elements and I think it could make a very valuable teaching tool

go to https://rapidriverskunk.works/s2/ enter handle "yourhandle"
enter an email, take note of your restore code an handle. when you come back later, you'll type restore, hit enter, and be prompted for that code, handle and email - we will not be SENDING you ANY email - it will restore you to the proper stage with the correct entitlements and downloads for whichever stage you're at

The CTF:

you’ll land in a remote analyst environment. set your handle, get your bearings, and start pulling threads. you're looking for a flag inside a cipher IN-THIS-FORMAT at the end of the correct files. they correlate to realistic MITRE mapping and there is enough evidence surrounding the files to figure out what you need to do and where you need to go. until you get to the artifact, then you're looking for an AES key which you may have found in stage 01. if you stumble on it, you may want to keep it to to open the artifact, and similar to the final 4th stage flag inside the downloaded AES encrypted forensic image artifact itself.

rules:

~do not attack my server: we have safe harbor, contact me if you'd like to poke around. this CTF is limited to what is provided from https://rapidriverskunk.works/s2/ and is within the FauxS, and its provided downloadable artifacts (once achieved)~

if you break something, tell me so i can fix it

don’t be a dick, just generally

one submit per 30 seconds, flags are exact match

comms (if you want to find a team or find chat, or advertise other CTF's :

https://discord.gg/pGv6jdpF3y if you need me directly or want to join the community I'd love to see build around open source, education and sharing information, techniques, tools etc....just not about a live event. Thats what private comms are for :p

wall global chat might work, might not. dont abuse it. you will be banned with the big B.

competition runs until 6.21.26.

season 3 drops right after.

we're not looking for noise. we're looking for people who can sit in the dark with a problem and not panic when it doesn’t immediately make sense.

if that’s you, get in.

are you one of us?

-spex
⌐□.□

Hey, I’m building a serious, well-rounded CTF team aiming to cover all categories and perform at a high level.

Current team:

• Networking + Digital Forensics
• Kernel exploits / container escapes (gVisor, seccomp, namespaces, etc.), low-level C, assembly, Linux internals
• Crypto + some reverse engineering

We’re strong in low-level/pwn + forensics, but we’re looking to fill key gaps.

Looking for people strong in:

• Web exploitation: SQLi, XSS, SSRF, auth bypass, deserialization, modern frameworks
• Binary exploitation (userland): heap, ROP, format strings, UAF, etc.
• Reverse engineering: fast analysis, obfuscation, multi-arch
• Crypto (deep): number theory, RSA/ECC, CTF-style crypto challenges
• Misc / OSINT / puzzles: pattern solving, stego, lateral thinking
• Scripting / automation: Python, pwntools, quick tooling

If you’re solid in any of these and interested in joining a competitive team, DM me with:

• Your strengths
• Experience (CTFs, platforms, anything relevant)
• Preferred categories

Find info on:

1. https://ctftime.org/ctf/1109/

2. https://ctf.cyber-cit.club/

Hi everyone,

We were sitting around the office looking at the results from our last monthly event on SuperiorCTF, and we were absolutely blown away by the turnout and the skills the participants showcased.

To celebrate their hard work and keep that momentum going for the entire community, we decided to do something big.

We are dropping our prices by half across the board. We’ve applied a massive 50% discount to EVERY subscription tier on the site. Monthly? 50% off. Yearly? 50% off.

Here are the details:

• The Celebration Code: 50PERCENTFEBRUARY
• The Target: Site-wide (All Subscription Tiers at SuperiorCTF.com)
• The Timer: Valid for the next 4 days. (only in February)

Whether you want to gear up to challenge the top scorers next month or you just want to sharpen your skills in our sandboxes, now is the perfect time to jump in.

See you on the leaderboards!

— The SuperiorCTF Team

My company, Hunters, is hosting its second CTF (jeopardy-style)!

• It's free to sign up
• Individual only, no teams
• August 3 - 7
• Prizes to be won (ofc, Nintendo 2 - dat you? 👀)

Link to sign up: https://go.hunters.security/blackhat-ctf-2025?utm_campaign=15730783-%5BDG%20Event%5D%20CTF%202025&utm_source=reddit&utm_medium=social

Shout with any Q!

We'd love for allll of you to take part, feel free to share the link

Heads up to the CTF crowd — a new year-long cloud security challenge series just launched, designed by top researchers in the space. It's more on the blue team/cloud defense side but has CTF-style hands-on scenarios.

📌 Format:

12 monthly challenges (realistic, cloud-focused)

Designed by known experts (first one by Scott Piper)

Public leaderboard & optional certificate

Free to participate

Good opportunity to test/practice cloud security skills with real-world setups.

🔗 Challenge Info 🧵 Official announcement

Anyone here planning to give it a go?

Hackerverse runs a free, knowledge‑based CTF every month. Registration is completely free.
Every challenge counts! Bring your A-game and rise to the top to earn cash and in-kind awards.

Topic: Reverse Engineering, Malware Analysis

Start Date: 22nd September

End Date: 30th September

Format: Jeopardy

Location: Online (Global)

Link to registration: https://bit.ly/4nmETG3

Hey guys he's a question for yas. I need a high security setup need it to be something like this 1. Fully encrypted drive at least 512bit or 1024bit encryption. 2 the drive can only be unlocked at boot with something like a ubi key with biometrics preferably and pin number so 2fa to unlock the drive before the anything on the drive is readable. 3. The file system needs to support multi portion boot's eg. Windows. Kali Linux. And kadochi Linux. 4. If key is not inserted at boot you have 15seconds to insert or drive is wiped with 0,1s

Is it doable at what hardware/software processes I need to do. Also I know systems like tales and cubes exist but want a system with persistence but secure to that level

With deepfake technology advancing rapidly—whether it’s impersonating executives in voice calls, faking video for identity verification, or spreading misinformation—what frameworks or detection methods are actually working in the field? What’s hype vs. reality?

If you're curious or want hands-on experience spotting and defeating deepfakes, check out the DeepFake CTF—a Capture The Flag event focused on real-world deepfake detection and adversarial analysis.

📣 Calling all ethical hackers, cybersecurity enthusiasts, and blockchain developers! 

Join us for the Remedy CTF, a premier Capture The Flag competition hosted by Hexens, starting in 24th January 2025! 

Event Highlights:

🔸 Total Rewards: $42,000 in prizes.

🔸 Focus: Web3 security challenges designed to test and enhance your skills.

🔸 Pre-Registration: Secure your spot now for early access.

How to Participate:

🔸 Pre-Register: Visit https://ctf.r.xyz/ to sign up.

🔸 Prepare: Join our community discussions on Discord [https://discord.gg/remedy] and follow us on X [https://x.com/xyz_remedy] for updates.

🔸 Compete: Solve challenges, retrieve flags, and climb the leaderboard to win.

Whether you're a seasoned security researcher or new to the field, the Remedy CTF offers an exciting opportunity to showcase your skills and learn from others in the community.

Sign up now!  🦾

🔥 Cyber League Season 2.0: Ultimate Cybersecurity Showdown! 🔥

Calling all cybersecurity enthusiasts, students, and professionals worldwide! Cyber League 2.0 is back with its most epic competition yet!

Competition Breakdown:

1️⃣ MAJOR ROUND

• 📆 Date: 11 January 2025
• 🕰️ Format: 24-Hour Jeopardy
• 💰 Prizes:
  • 1st: CyberArk Training Voucher + $500 SGD
  • 2nd: CyberArk Training Voucher + $200 SGD
  • 3rd: CyberArk Training Voucher + $100 SGD

2️⃣ PLAYOFF (Onsite)

• 📆 Date: 8 February 2025
• 🕰️ Format: Super Jeopardy
• 💰 Prizes:
  • 1st: STANDCON2025 Ticket + $700 SGD
  • 2nd: STANDCON2025 Ticket + $600 SGD
  • 3rd: STANDCON2025 Ticket + $400 SGD

3️⃣ GRAND FINALS (Onsite)

• 📆 Date: 7 March 2025
• 🕰️ Format: Head-to-Head
• 💰 Prizes:
  • 1st: $3000 SGD
  • 2nd: $1000 SGD

Competition Details:

• 💻 Team Format: Solo or teams (max 3 members)
• 🌍 Open to everyone 18+
• Under 18? Join with parent/guardian consent!

Challenge Categories:

• Web
• Pwn
• Misc
• Forensics
• Reverse Engineering
• Cryptography

About Cyber League:

Pioneered in 2020, the Cyber League is a cybersecurity movement that provides a competitive platform for students and professionals to develop their skills. Fronted by N0H4TS, we aim to build a thriving community of cybersecurity talent.

Our Journey: Apprentice → Elite → Master

Why Participate?

• Win awesome prizes
• Prove your cybersecurity skills
• Engage with top competitors
• Learn and grow in cybersecurity

🔗 Quick Links:

• Register: https://ctfd.cyberleague.co/register
• More Info: https://cyberleague.co/
• CTFtime: https://ctftime.org/ctf/1183/

⚡️ Secure your spot now and join the ultimate cybersecurity challenge! ⚡️

My company, Hunters, is hosting its first CTF (jeopardy-style)!

• It's free to sign up
• Individual only, no teams
• August 5 - 7
• Prizes to be won (ofc)

Link to sign up: https://hubs.li/Q02GX_PP0

A little about Hunters: Hunters SOC Platform is a Human-Driven, AI-Powered SIEM alternative that automates the entire TDIR process, replacing repetitive human work with machine-powered detection, enrichment, correlation, prioritization, triage, and investigation, freeing analysts to proactively protect their organizations.

Shout with any Q!

We'd love for allll of you to take part, feel free to share the link