Registrations are OPEN for the “Introduction to Security” course 2026. 🔗 Read more:

Our AI Deception Project Takes Top Prize at CTU 🎉 www.aic.fel.cvut.cz/news/ai-dece...

New Slips version v1.1.21 is here! 🔗 Read more:

Security of an In-orbit Satellite: Detection of Compromise Through Integrity 🔗 Read more:

Poster: Multi-Objective Model Selection Pipeline for Network Flow Classification at POSTERS 2026 🔗 Read more:

Dean's Award Outstanding Teaching "Lecturer Category" to Sebastian Garcia 🔗 Read more:

New Slips version v1.1.20 is here! 🔗 Read more:

NetSecGame v0.2.0 - Reproducible Experiments and a More Robust Game Server 🔗 Read more:

New Slips version v1.1.19 is here! 🔗 Read more:

NetSecGame - A Framework for Training and Evaluating AI Agents in Network Security Environments 🔗 Read more: www.stratosphereips.org/blog/2026/1/...

Adaptive Response in Slips IDS as Immune T Cells 🔗 Read more:

Adapting Detections in Slips with Immune Pseudo-Generated Regexes 🔗 Read more:

New Slips version v1.1.18 is here! 🔗 Read more:

HTTPS Anomaly Detection in Slips: Adaptive Baselines for Real Traffic 🔗 Read more:

What if cybersecurity worked more like the immune system? Not perfect prevention, but detection, response, learning, and adaptation over time. We wrote some thoughts on it! 🔗 Read more: www.stratosphereips.org/blog/2026/2/...

NetSecGame - A Framework for Training and Evaluating AI Agents in Network Security Environments 🔗 Read more:

New Slips version v1.1.17 is here! 🔗 Read more:

What if we told you we built a system that can break every LLM assistant you throw at it? Our tool presented today at #BHEU Arsenal, achieves just that! 💾 Explore more here: github.com/stratosphere...

New Slips version v1.1.16 is here! 🔗 Read more:

The StratoCyberLab (SCL) is our local cyber range, where anyone can test and practice their offensive and defensive cybersecurity skills: github.com/stratosphere... 🔒 Local-only. No cloud. No tracking. No login. No data collection. ⚙️ Easy-To-Use. Only Docker is required. #CyberRange #Education

Woohoo! A new edition of our Stratosphere newsletter is just out! Catch up with some of our team activities since the last edition! 🚀 www.linkedin.com/pulse/strato...

If you missed our talk at #ekoparty, here's a poster summarizing some of our results on evaluating ARACNE, our multi-agent framework for autonomous Linux shell security testing. Our evaluation is still ongoing, and we hope to share more results soon 🚀

New Slips version v1.1.15 is here! 🔗 Read more:

Every year, thousands join our CTU Introduction to Security — where curiosity meets courage, and learning means attacking & defending. This is our heartbeat. 🎬 Watch the premiere → www.youtube.com/watch?v=FLtX... #CyberSecurity #Animation

🚀 At #ekoparty, our team presented ARACNE, a multi-agent LLM based offensive and defensive agent for Linux shell systems, and one of the largest LLM model evaluations to date. 🔗 Slides: bit.ly/EKO21ARACNES... 🔗 Code: bit.ly/EKO21ARACNEC... 🔗 Paper: bit.ly/EKO21ARACNEP...

AI Attackers in Your Pocket: How Small Language Models Can Outsmart Cyber Defenses 🔗 Read more:

Our colleague Lukáš Forst talked with Česká televize on the partial end of support for Windows 10, and what are the implications for European users. Watch the full segment in Czech here: www.ceskatelevize.cz/porady/10971...

New Slips version v1.1.12 is here! 🔗 Read more:

Discover our Open Call 2️⃣ innovator Melisseus: Large Language Models as Defensive Honeypots, by @stratosphereips.bsky.social 🇨🇿 & @umontreal-en.bsky.social 🇨🇦 🌊💡Check their #NGISargassoInnovator portfolio for more info: ngisargasso.eu/innovator/me... #Cybersecurity #NGISargasso @eldraco.bsky.social

𝗢𝗻𝗹𝗶𝗻𝗲, 𝗵𝗮𝗻𝗱𝘀-𝗼𝗻, 𝗽𝗿𝗮𝗰𝘁𝗶𝗰𝗮𝗹, 𝗮𝗻𝗱 𝗳𝗿𝗲𝗲! CTU's "Introduction to Security" class opens online for free and includes a new professional tier with an EU-recognized certificate! 👉🏻 cybersecurity.bsy.fel.cvut.cz #cybersec #infosec #blueteam #redteam #Training

🎥 It’s true — the #Honeynet2025 recordings are live on YouTube! Watch every talk, easily navigable via video chapters. 🔗 One link to find them all: youtu.be/uxbzGcIegVU?...

#Honeynet2025 talks are now live on YouTube including my talk on #smishing #honeypot! In case you missed the event or want to checkout the talks: m.youtube.com/watch?t=1630... @sec.cs.ucl.ac.uk @ucl.ac.uk @stratosphereips.bsky.social

Our Introduction to Security #MOOC is open again — 14 weeks of real-world attacking & defending! 🌍 Open worldwide 📅 First round of applications by Aug 15 🧾 New EU-cert track for professionals Spread the word 👇 cybersecurity.fel.cvut.cz #cybersecurity #infosec #Training

Ever dreamed of running an LLM on a Raspberry Pi, like the good old days of hacking? Check out our blog on how these tiny computers stack up in LLM performance. #cybersecurity #LLMs #AI www.stratosphereips.org/blog/2025/6/...

Curious about which countries are behind the most cyber attacks and their preferred methods? 🌍 Students Rocío Baggio and Diego Forni created a tool that shows the top nations and their tactics in a single query. www.stratosphereips.org/blog/2025/6/...

We’re thrilled to share our new ICAART extension paper! 🚀 It explores using Large Language Models (LLMs) as agents in network security testing, outperforming traditional RL. #CyberSecurity #LLM #AIResearch www.stratosphereips.org/blog/2025/6/...

🌟 What an incredible event! Thank you to everyone who joined, shared, and contributed to making this a fantastic experience. We couldn’t have done it without your energy and support. 🌟 #Honeynet2025

The last two trainings are under way! With Sebastian Garcia teaching “Getting Your Hands Dirty: Dissecting Malware Traffic to Understand Attackers Behaviours” and Gregory Carpenter teaching “Perception vs. Perspective: Doublespeak and the Control of Reality”. #Honeynet2025

Huge thank you to Simply Catering (simplycatering.cz) for excellent service at our #Honeynet2025 conference! Punctuality, transparency, and quality are what set them apart! Thanks for making our event a success! 🙏

We are ready to kick off the last day of trainings at #Honeynet2025 in the beautiful National Technical Library in Prague !

It was a pleasure to present our #smishing honeypot for the first time at #Honeynet2025! Thanks to the @stratosphereips.bsky.social team for organising a great event! @sec.cs.ucl.ac.uk @ucl.ac.uk

That's a wrap! Sebastian Garcia is closing this edition of the #Honeynet2025 conference! Thank you to our sponsors, speakers, and the community! We head now to the social event at Cafe Prostoru_ and we continue tomorrow for the trainings!

Next at #Honeynet2025, Georgy Kucherin presents: 🔎 “How Threat Actors Deceive Researchers via Unpopular Software”

Next at #Honeynet2025, Václav Bartoš & Pavel Valach present: 🔍 “HUGO Honeypot Project”

Next at #Honeynet2025, Hugo Gonzalez presents: 🏦 “Evolution of Banking Threats in LATAM: A Detailed Review of Mispadu”

Next at #Honeynet2025, Sharad Agarwal presents: 📲 “Staying Up-to-Date with SMS Scams: Building a Smishing Honeypot”

Next at #Honeynet2025, Rajaram Bhaskaran presents: 🔓 “Stealing the Stealer: Catching Data Exfiltration with Deception”

Next at #Honeynet2025, Anastasiia Dorosh presents: 🔍 “Detecting Open-Source Honeypots”

Next at #Honeynet2025, Murtuza Ali presents: 🦠 “Bot-any of Stagers: Understanding the Landscape of Malware Staging Servers in RCE Botnets”

Next at #Honeynet2025, Daniele Rosetti presents: 🦉 “IntelOwl Project: Making the Life of Security Analysts Easier”