Stratosphere Laboratory
@stratosphereips.bsky.social
Researching at the intersection of Machine Learning, Cybersecurity and helping others.
AI Center, Faculty of Electrical Engineering, Czech Technical University in Prague
A few shots from yesterday’s art installation opening at the Stratosphere Laboratory offices by Lili Fiallo! We had a beautiful evening, games, food, drinks and talks!
Thank you Lili for your beautiful work, which we will treasure at our lab, it really captures our spirit!
Thank you Lili for your beautiful work, which we will treasure at our lab, it really captures our spirit!
September 11, 2026 at 3:56 PM
A few shots from yesterday’s art installation opening at the Stratosphere Laboratory offices by Lili Fiallo! We had a beautiful evening, games, food, drinks and talks!
Thank you Lili for your beautiful work, which we will treasure at our lab, it really captures our spirit!
Thank you Lili for your beautiful work, which we will treasure at our lab, it really captures our spirit!
We are super excited to welcome artist Lili Fiallo and her art installation "Aca Toy" to our home at Stratosphere Laboratory! Art, AI, and Cybersecurity sharing the same space. ❤️🖤
September 9, 2026 at 3:57 PM
We are super excited to welcome artist Lili Fiallo and her art installation "Aca Toy" to our home at Stratosphere Laboratory! Art, AI, and Cybersecurity sharing the same space. ❤️🖤
Every year, we hear people saying they're "not technical enough" for this course. They are the ones who finish it.
📅 Classes kick off on September 24, 2026.
📅 Late registrations close on October 8, 2026.
🔗 Register: bsy.cz/go
📅 Classes kick off on September 24, 2026.
📅 Late registrations close on October 8, 2026.
🔗 Register: bsy.cz/go
September 8, 2026 at 3:51 PM
Every year, we hear people saying they're "not technical enough" for this course. They are the ones who finish it.
📅 Classes kick off on September 24, 2026.
📅 Late registrations close on October 8, 2026.
🔗 Register: bsy.cz/go
📅 Classes kick off on September 24, 2026.
📅 Late registrations close on October 8, 2026.
🔗 Register: bsy.cz/go
ℹ️ Our datasets and blocklist feeds will be **unavailable** for the next 48-72 hours. In the meantime, you can explore our selected datasets in Zenodo: zenodo.org/communities/...
September 5, 2026 at 8:00 AM
ℹ️ Our datasets and blocklist feeds will be **unavailable** for the next 48-72 hours. In the meantime, you can explore our selected datasets in Zenodo: zenodo.org/communities/...
ℹ️ Our datasets and blocklist feeds will be **unavailable** for the next 48-72 hours. In the meantime, you can explore our selected datasets in Zenodo: zenodo.org/communities/...
September 4, 2026 at 7:23 AM
ℹ️ Our datasets and blocklist feeds will be **unavailable** for the next 48-72 hours. In the meantime, you can explore our selected datasets in Zenodo: zenodo.org/communities/...
New Slips version v1.1.23 is here!
🔗 Read more:
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New Slips version v1.1.23 is here! — Stratosphere Laboratory
Our team is excited to share the latest news and features of Slips, our behavioral-based machine learning intrusion detection system.
www.stratosphereips.org
September 1, 2026 at 3:51 PM
New Slips version v1.1.23 is here!
🔗 Read more:
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This year marks three years since we published our CTU-SME-11 dataset: 11 devices, 7 days, 99 million expert-labeled network flows with real benign and malicious traffic.
🔗 Explore the dataset: doi.org/10.5281/zeno...
🔗 Explore the dataset: doi.org/10.5281/zeno...
July 29, 2026 at 7:26 AM
This year marks three years since we published our CTU-SME-11 dataset: 11 devices, 7 days, 99 million expert-labeled network flows with real benign and malicious traffic.
🔗 Explore the dataset: doi.org/10.5281/zeno...
🔗 Explore the dataset: doi.org/10.5281/zeno...
We believe practical cybersecurity education should be available to anyone with curiosity and an internet connection, regardless of where they live or what they can afford. Help us spread the word!
Learn with us through our free or professional track:
cybersecurity.bsy.fel.cvut.cz
Learn with us through our free or professional track:
cybersecurity.bsy.fel.cvut.cz
July 9, 2026 at 3:41 PM
We believe practical cybersecurity education should be available to anyone with curiosity and an internet connection, regardless of where they live or what they can afford. Help us spread the word!
Learn with us through our free or professional track:
cybersecurity.bsy.fel.cvut.cz
Learn with us through our free or professional track:
cybersecurity.bsy.fel.cvut.cz
New Slips version v1.1.22 is here!
🔗 Read more:
🔗 Read more:
New Slips version v1.1.22 is here! — Stratosphere Laboratory
Our team is excited to share the latest news and features of Slips, our behavioral-based machine learning intrusion detection system.
www.stratosphereips.org
July 4, 2026 at 9:07 AM
New Slips version v1.1.22 is here!
🔗 Read more:
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Registrations are OPEN for the “Introduction to Security” course 2026.
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June 16, 2026 at 7:11 AM
Registrations are OPEN for the “Introduction to Security” course 2026.
🔗 Read more:
🔗 Read more:
Our AI Deception Project Takes Top Prize at CTU 🎉
www.aic.fel.cvut.cz/news/ai-dece...
www.aic.fel.cvut.cz/news/ai-dece...
June 10, 2026 at 3:57 PM
Our AI Deception Project Takes Top Prize at CTU 🎉
www.aic.fel.cvut.cz/news/ai-dece...
www.aic.fel.cvut.cz/news/ai-dece...
New Slips version v1.1.21 is here!
🔗 Read more:
🔗 Read more:
New Slips version v1.1.21 is here! — Stratosphere Laboratory
Our team is excited to share the latest news and features of Slips, our behavioral-based machine learning intrusion detection system.
www.stratosphereips.org
June 2, 2026 at 7:11 AM
New Slips version v1.1.21 is here!
🔗 Read more:
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Security of an In-orbit Satellite: Detection of Compromise Through Integrity
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Security of an In-orbit Satellite: Detection of Compromise Through Integrity — Stratosphere Laboratory
Small satellites are increasingly vulnerable to cyberattacks, yet their resource constraints make implementing robust security mechanisms a significant challenge. This thesis explores how to protect the...
www.stratosphereips.org
May 20, 2026 at 7:26 AM
Security of an In-orbit Satellite: Detection of Compromise Through Integrity
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Poster: Multi-Objective Model Selection Pipeline for Network Flow Classification at POSTERS 2026
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Poster: Multi-Objective Model Selection Pipeline for Network Flow Classification at POSTERS 2026 — Stratosphere Laboratory
Training classifiers for network intrusion detection is hindered by two types of problems: data challenges (lack of labels, class imbalance, non-IID data, and concept drift) and engineering challenges...
www.stratosphereips.org
May 14, 2026 at 3:39 PM
Poster: Multi-Objective Model Selection Pipeline for Network Flow Classification at POSTERS 2026
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Dean's Award Outstanding Teaching "Lecturer Category" to Sebastian Garcia
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Dean's Award Outstanding Teaching "Lecturer Category" to Sebastian Garcia — Stratosphere Laboratory
Sebastian has just been awarded by the Dean of the Faculty of Electrical Engineering, Czech Technical University in Prague, for his outstanding teaching performance in the Winter Semester 2025/2026!
www.stratosphereips.org
May 7, 2026 at 3:39 PM
Dean's Award Outstanding Teaching "Lecturer Category" to Sebastian Garcia
🔗 Read more:
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New Slips version v1.1.20 is here!
🔗 Read more:
🔗 Read more:
New Slips version v1.1.20 is here! — Stratosphere Laboratory
Our team is excited to share the latest news and features of Slips, our behavioral-based machine learning intrusion detection system.
www.stratosphereips.org
May 1, 2026 at 7:23 AM
New Slips version v1.1.20 is here!
🔗 Read more:
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NetSecGame v0.2.0 - Reproducible Experiments and a More Robust Game Server
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NetSecGame version 0.2.0 — Stratosphere Laboratory
NetSecGame v0.2.0 is here. This release focuses on what matters most for reproducible AI research: deterministic episode control, a more robust simulation server, and a significantly expanded test suite....
www.stratosphereips.org
April 7, 2026 at 3:51 PM
NetSecGame v0.2.0 - Reproducible Experiments and a More Robust Game Server
🔗 Read more:
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New Slips version v1.1.19 is here!
🔗 Read more:
🔗 Read more:
New Slips version v1.1.19 is here! — Stratosphere Laboratory
Our team is excited to share the latest news and features of Slips, our behavioral-based machine learning intrusion detection system.
www.stratosphereips.org
April 1, 2026 at 3:57 PM
New Slips version v1.1.19 is here!
🔗 Read more:
🔗 Read more:
NetSecGame - A Framework for Training and Evaluating AI Agents in Network Security Environments
🔗 Read more: www.stratosphereips.org/blog/2026/1/...
🔗 Read more: www.stratosphereips.org/blog/2026/1/...
Build Cyber Agents with NetSecGame v0.1.0 — Stratosphere Laboratory
Build, train, and evaluate network security agents using NetSecGame. A high-speed, Docker-ready framework for Reinforcement Learning and cyber research.
www.stratosphereips.org
March 24, 2026 at 4:51 PM
NetSecGame - A Framework for Training and Evaluating AI Agents in Network Security Environments
🔗 Read more: www.stratosphereips.org/blog/2026/1/...
🔗 Read more: www.stratosphereips.org/blog/2026/1/...
Adaptive Response in Slips IDS as Immune T Cells
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Adaptive Response in Slips IDS as Immune T Cells — Stratosphere Laboratory
The T Cell module was created to give Slips a stateful adaptive response layer on top of its existing evidence pipeline.
www.stratosphereips.org
March 24, 2026 at 8:11 AM
Adaptive Response in Slips IDS as Immune T Cells
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Adapting Detections in Slips with Immune Pseudo-Generated Regexes
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Adapting Detections in Slips with Immune Pseudo-Generated Regexes — Stratosphere Laboratory
The RegexGenerator module was created to give Slips an adaptive way to discover new string-based detectors for changing indicators such as domains, URIs, filenames, TLS SNI values, and certificate common...
www.stratosphereips.org
March 23, 2026 at 4:31 PM
Adapting Detections in Slips with Immune Pseudo-Generated Regexes
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New Slips version v1.1.18 is here!
🔗 Read more:
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New Slips version v1.1.18 is here! — Stratosphere Laboratory
Our team is excited to share the latest news and features of Slips, our behavioral-based machine learning intrusion detection system.
www.stratosphereips.org
March 4, 2026 at 8:26 AM
New Slips version v1.1.18 is here!
🔗 Read more:
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HTTPS Anomaly Detection in Slips: Adaptive Baselines for Real Traffic
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New Slips IDS HTTPS Anomaly Detection Module — Stratosphere Laboratory
The new HTTPS anomaly detection module in Slips builds per-host adaptive baselines in traffic time, then detects deviations at two levels.
www.stratosphereips.org
February 24, 2026 at 8:11 AM
HTTPS Anomaly Detection in Slips: Adaptive Baselines for Real Traffic
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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/...
🔗 Read more: www.stratosphereips.org/blog/2026/2/...
Rethinking Cybersecurity Defense: Principles from Biological Immunity — Stratosphere Laboratory
Our research identifies sixteen fundamental principles of biological immunity and translates them into cybersecurity defense architectures that emphasize multi-dimensional coordination over single-…
www.stratosphereips.org
February 4, 2026 at 4:57 PM
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/...
🔗 Read more: www.stratosphereips.org/blog/2026/2/...
NetSecGame - A Framework for Training and Evaluating AI Agents in Network Security Environments
🔗 Read more:
🔗 Read more:
Build Cyber Agents with NetSecGame v0.1.0 — Stratosphere Laboratory
Build, train, and evaluate network security agents using NetSecGame. A high-speed, Docker-ready framework for Reinforcement Learning and cyber research.
www.stratosphereips.org
February 3, 2026 at 4:51 PM
NetSecGame - A Framework for Training and Evaluating AI Agents in Network Security Environments
🔗 Read more:
🔗 Read more: