Closing talk of Hackerhotel 2025 with NFIR CTF award ceremony.Licensed to the public under http://creativecommons.org/licenses/by/4.0about this event: https://pretalx.hackerhotel.nl/2025/talk/YBZVUM/द्वारा Dimitri

Closing talk of Hackerhotel 2025 with NFIR CTF award ceremony.Licensed to the public under http://creativecommons.org/licenses/by/4.0about this event: https://pretalx.hackerhotel.nl/2025/talk/YBZVUM/द्वारा Dimitri

Closing talk of Hackerhotel 2025 with NFIR CTF award ceremony.Licensed to the public under http://creativecommons.org/licenses/by/4.0about this event: https://pretalx.hackerhotel.nl/2025/talk/YBZVUM/द्वारा Dimitri

The internet cleanup foundation publishes the baseline security of 150.000 domains of 10.000 important organizations in the Netherlands. This talk shows what we've done in 2024 and highlights some of the nice things to come in 2025 maybe spoiling one or two things :) - It had a ton of impact and large banks, internet providers and all kinds of othe…

The internet cleanup foundation publishes the baseline security of 150.000 domains of 10.000 important organizations in the Netherlands. This talk shows what we've done in 2024 and highlights some of the nice things to come in 2025 maybe spoiling one or two things :) - It had a ton of impact and large banks, internet providers and all kinds of othe…

The internet cleanup foundation publishes the baseline security of 150.000 domains of 10.000 important organizations in the Netherlands. This talk shows what we've done in 2024 and highlights some of the nice things to come in 2025 maybe spoiling one or two things :) - It had a ton of impact and large banks, internet providers and all kinds of othe…

Operational Technology (OT) is vital for industrial processes, yet strategic understanding of OT’s security complexity is often lacking at the executive level. This presentation emphasizes the need for organizations to approach OT as a strategic priority, highlighting its unique challenges—such as legacy systems and non-negotiable uptime—amid risin…

Operational Technology (OT) is vital for industrial processes, yet strategic understanding of OT’s security complexity is often lacking at the executive level. This presentation emphasizes the need for organizations to approach OT as a strategic priority, highlighting its unique challenges—such as legacy systems and non-negotiable uptime—amid risin…

Operational Technology (OT) is vital for industrial processes, yet strategic understanding of OT’s security complexity is often lacking at the executive level. This presentation emphasizes the need for organizations to approach OT as a strategic priority, highlighting its unique challenges—such as legacy systems and non-negotiable uptime—amid risin…

Our workflow, challenges and other fun thingsFrom the lands where badges and brooches grow on trees, a mythical folk of badge herders live peacefully and in harmony with nature and technology. They love providing humans with their seasonal harvest at Hacker events such as Hacker Hotel. We expect them to show up to tell you all about this seasons yi…

Our workflow, challenges and other fun thingsFrom the lands where badges and brooches grow on trees, a mythical folk of badge herders live peacefully and in harmony with nature and technology. They love providing humans with their seasonal harvest at Hacker events such as Hacker Hotel. We expect them to show up to tell you all about this seasons yi…

Our workflow, challenges and other fun thingsFrom the lands where badges and brooches grow on trees, a mythical folk of badge herders live peacefully and in harmony with nature and technology. They love providing humans with their seasonal harvest at Hacker events such as Hacker Hotel. We expect them to show up to tell you all about this seasons yi…

This talk will take you along with a deep dive on how the internet works at its core and how you can participate yourself. You'll learn all about BGP, AS- numbers, IP-prefixes and more.Ever wanted to become sovereign on the internet? Want to know what its like to run an ISP? Are you a sysadmin that wants to learn more about networking? Then you're …

This talk will take you along with a deep dive on how the internet works at its core and how you can participate yourself. You'll learn all about BGP, AS- numbers, IP-prefixes and more.Ever wanted to become sovereign on the internet? Want to know what its like to run an ISP? Are you a sysadmin that wants to learn more about networking? Then you're …

This talk will take you along with a deep dive on how the internet works at its core and how you can participate yourself. You'll learn all about BGP, AS- numbers, IP-prefixes and more.Ever wanted to become sovereign on the internet? Want to know what its like to run an ISP? Are you a sysadmin that wants to learn more about networking? Then you're …

The European electricity network has become a ‘smart grid.’ This offers many opportunities for sustainability but also makes our energy system more vulnerable to digital attacks. In a time of increasing threat of hybrid warfare, the government and the energy sector realize that we as a society must prepare for possible disruption of the energy syst…

The European electricity network has become a ‘smart grid.’ This offers many opportunities for sustainability but also makes our energy system more vulnerable to digital attacks. In a time of increasing threat of hybrid warfare, the government and the energy sector realize that we as a society must prepare for possible disruption of the energy syst…

The European electricity network has become a ‘smart grid.’ This offers many opportunities for sustainability but also makes our energy system more vulnerable to digital attacks. In a time of increasing threat of hybrid warfare, the government and the energy sector realize that we as a society must prepare for possible disruption of the energy syst…

Nuclear fusion is a clean safe energy. Fusing hydrogen nuclei to release an enormous amount of energy. This talk will cover:- A recap of the physics that makes fusion work- How to build a fusion reactor at home- How nuclei collide and what is needed to the coulomb barrier- Challenges in how to scale it up and make it generate more power - How far a…

Nuclear fusion is a clean safe energy. Fusing hydrogen nuclei to release an enormous amount of energy. This talk will cover:- A recap of the physics that makes fusion work- How to build a fusion reactor at home- How nuclei collide and what is needed to the coulomb barrier- Challenges in how to scale it up and make it generate more power - How far a…

Tijdens Hacker Hotel krijg je de unieke kans om deel te nemen aan Operation Check Mate, een meeslepende interactieve ervaring waarin je zelf in de schoenen van een rechercheur staat. Deze game is ontwikkeld door experts uit het veld en biedt een fascinerende inkijk in de wereld van strafrechtelijk onderzoek.In teams werk je aan een intrigerende zaa…

Wat je als 𝘏𝘰𝘮𝘰 𝘊𝘺𝘣𝘦𝘳𝘯𝘦𝘵𝘪𝘤𝘶𝘴 altijd al hebt willen weten: hoe krijg je het voor elkaar dat de 𝘏𝘰𝘮𝘰 𝘖𝘳𝘥𝘪𝘯𝘢𝘳𝘪𝘶s (= niet hackende mens) ein-de-lijk het belang van jouw werk inziet en een beetje meewerkt.Strijk neer op je handdoek en leun achterover, want deze zondagmiddag (Don't Panic. Time is an illusion.) nemen Roxane Kortland en ik je mee hoe je al…

Wat je als 𝘏𝘰𝘮𝘰 𝘊𝘺𝘣𝘦𝘳𝘯𝘦𝘵𝘪𝘤𝘶𝘴 altijd al hebt willen weten: hoe krijg je het voor elkaar dat de 𝘏𝘰𝘮𝘰 𝘖𝘳𝘥𝘪𝘯𝘢𝘳𝘪𝘶s (= niet hackende mens) ein-de-lijk het belang van jouw werk inziet en een beetje meewerkt.Strijk neer op je handdoek en leun achterover, want deze zondagmiddag (Don't Panic. Time is an illusion.) nemen Roxane Kortland en ik je mee hoe je al…

Tijdens Hacker Hotel krijg je de unieke kans om deel te nemen aan Operation Check Mate, een meeslepende interactieve ervaring waarin je zelf in de schoenen van een rechercheur staat. Deze game is ontwikkeld door experts uit het veld en biedt een fascinerende inkijk in de wereld van strafrechtelijk onderzoek.In teams werk je aan een intrigerende zaa…

Wat je als 𝘏𝘰𝘮𝘰 𝘊𝘺𝘣𝘦𝘳𝘯𝘦𝘵𝘪𝘤𝘶𝘴 altijd al hebt willen weten: hoe krijg je het voor elkaar dat de 𝘏𝘰𝘮𝘰 𝘖𝘳𝘥𝘪𝘯𝘢𝘳𝘪𝘶s (= niet hackende mens) ein-de-lijk het belang van jouw werk inziet en een beetje meewerkt.Strijk neer op je handdoek en leun achterover, want deze zondagmiddag (Don't Panic. Time is an illusion.) nemen Roxane Kortland en ik je mee hoe je al…

Tijdens Hacker Hotel krijg je de unieke kans om deel te nemen aan Operation Check Mate, een meeslepende interactieve ervaring waarin je zelf in de schoenen van een rechercheur staat. Deze game is ontwikkeld door experts uit het veld en biedt een fascinerende inkijk in de wereld van strafrechtelijk onderzoek.In teams werk je aan een intrigerende zaa…

Nuclear fusion is a clean safe energy. Fusing hydrogen nuclei to release an enormous amount of energy. This talk will cover:- A recap of the physics that makes fusion work- How to build a fusion reactor at home- How nuclei collide and what is needed to the coulomb barrier- Challenges in how to scale it up and make it generate more power - How far a…

In this talk I will show you the theory behind parametric arrays what is involved in making your own low-cost directional speakerParametric speakers are extremely directional speakers that produce audible sound by modulating an audible signal on top of an ultrasonic carrier. Commercial options have existed for a long time but are quite expensive fo…

In this talk I will show you the theory behind parametric arrays what is involved in making your own low-cost directional speakerParametric speakers are extremely directional speakers that produce audible sound by modulating an audible signal on top of an ultrasonic carrier. Commercial options have existed for a long time but are quite expensive fo…

In this talk I will show you the theory behind parametric arrays what is involved in making your own low-cost directional speakerParametric speakers are extremely directional speakers that produce audible sound by modulating an audible signal on top of an ultrasonic carrier. Commercial options have existed for a long time but are quite expensive fo…

What is an LLM? Can you run it yourself? Can you hack it?This session will explain high-level how an LLM works, how you can run this yourself (maybe for privacy reasons), Coding with LLMs and the hacking possibilities of these AI systems. Expect many demos and hopefully useful tips and tricks, so you can directly try all this stuff out yourself.Key…

It's one thing to plan a vacation trip to Cancun if you have a Dutch passport. It's entirely another to find a way to safety if you have an Egyptian passport.It's one thing to plan a vacation trip to Cancun if you have a Dutch passport. It's entirely another to find a way to safety if you have an Egyptian passport. We are experts in moving people t…

What is an LLM? Can you run it yourself? Can you hack it?This session will explain high-level how an LLM works, how you can run this yourself (maybe for privacy reasons), Coding with LLMs and the hacking possibilities of these AI systems. Expect many demos and hopefully useful tips and tricks, so you can directly try all this stuff out yourself.Key…

The Dutch Tax and Customs Administration deals with criminals claiming to be representatives of the organization and contacting the public with phishing emails daily. In this presentation, we will take you into the world of the criminals sending phishing emails and the recipients of the phishing mail. A live phishing demo is included.This presentat…

It's one thing to plan a vacation trip to Cancun if you have a Dutch passport. It's entirely another to find a way to safety if you have an Egyptian passport.It's one thing to plan a vacation trip to Cancun if you have a Dutch passport. It's entirely another to find a way to safety if you have an Egyptian passport. We are experts in moving people t…

The Dutch Tax and Customs Administration deals with criminals claiming to be representatives of the organization and contacting the public with phishing emails daily. In this presentation, we will take you into the world of the criminals sending phishing emails and the recipients of the phishing mail. A live phishing demo is included.This presentat…

The Dutch Tax and Customs Administration deals with criminals claiming to be representatives of the organization and contacting the public with phishing emails daily. In this presentation, we will take you into the world of the criminals sending phishing emails and the recipients of the phishing mail. A live phishing demo is included.This presentat…

What is an LLM? Can you run it yourself? Can you hack it?This session will explain high-level how an LLM works, how you can run this yourself (maybe for privacy reasons), Coding with LLMs and the hacking possibilities of these AI systems. Expect many demos and hopefully useful tips and tricks, so you can directly try all this stuff out yourself.Key…

It's one thing to plan a vacation trip to Cancun if you have a Dutch passport. It's entirely another to find a way to safety if you have an Egyptian passport.It's one thing to plan a vacation trip to Cancun if you have a Dutch passport. It's entirely another to find a way to safety if you have an Egyptian passport. We are experts in moving people t…

Sociale constructen gebruikt in software context en alles wat daar entertainment mee maakt :)Een interactieve presentatie over waarom beperkingen op je dataset zetten onhandig is.Wat is data?Hoe lang duurt een dag?Hoe lang duurt een uur?Hoe lang is een maand?Wat is een jaartal?Wat is een geboortedatum?Wat is een naam?Hoe lang is een pincode?Waaruit…

Onaangekondigde Persconferentie by Hackerhotel 2025-Licensed to the public under http://creativecommons.org/licenses/by/4.0about this event: -द्वारा Dimitri

Onaangekondigde Persconferentie by Hackerhotel 2025-Licensed to the public under http://creativecommons.org/licenses/by/4.0about this event: -द्वारा Dimitri

Sociale constructen gebruikt in software context en alles wat daar entertainment mee maakt :)Een interactieve presentatie over waarom beperkingen op je dataset zetten onhandig is.Wat is data?Hoe lang duurt een dag?Hoe lang duurt een uur?Hoe lang is een maand?Wat is een jaartal?Wat is een geboortedatum?Wat is een naam?Hoe lang is een pincode?Waaruit…

Onaangekondigde Persconferentie by Hackerhotel 2025-Licensed to the public under http://creativecommons.org/licenses/by/4.0about this event: -द्वारा Dimitri

Sociale constructen gebruikt in software context en alles wat daar entertainment mee maakt :)Een interactieve presentatie over waarom beperkingen op je dataset zetten onhandig is.Wat is data?Hoe lang duurt een dag?Hoe lang duurt een uur?Hoe lang is een maand?Wat is een jaartal?Wat is een geboortedatum?Wat is een naam?Hoe lang is een pincode?Waaruit…

The summary that's fun for both outsiders and insiders of this gem of a genre. Talk is in Dutch :)I wanted to do another talk, but Hacker Hotel decided to sell branded bomber jacks, which forced my hand as this conference then also needs the talk that goes along with those jackets. During the talk we'll listen to the evolution of a genre using samp…

The summary that's fun for both outsiders and insiders of this gem of a genre. Talk is in Dutch :)I wanted to do another talk, but Hacker Hotel decided to sell branded bomber jacks, which forced my hand as this conference then also needs the talk that goes along with those jackets. During the talk we'll listen to the evolution of a genre using samp…

The summary that's fun for both outsiders and insiders of this gem of a genre. Talk is in Dutch :)I wanted to do another talk, but Hacker Hotel decided to sell branded bomber jacks, which forced my hand as this conference then also needs the talk that goes along with those jackets. During the talk we'll listen to the evolution of a genre using samp…

Frank talks about AI, why it all of a sudden is everywhere and what it means.The keynotes of the likes of Microsoft, Google and Apple can all be summarized in 10 words: “A.I., A.I., A.I., Large Language Model, A.I., A.I., GPT, A.I. …“, so no doubt artificial intelligence holds a promise for the future. But what promise? Will A.I. save use or doom u…

Frank talks about AI, why it all of a sudden is everywhere and what it means.The keynotes of the likes of Microsoft, Google and Apple can all be summarized in 10 words: “A.I., A.I., A.I., Large Language Model, A.I., A.I., GPT, A.I. …“, so no doubt artificial intelligence holds a promise for the future. But what promise? Will A.I. save use or doom u…