Presentations

At DEF CON 32, a few friends pushed binary caching on NixOS to its limits. Thanks to a generous hardware donation by Protectli, we managed to get a mesh network of binary cache servers running in our backpacks, with Nebula mesh VPN and 802.11s mesh WiFi running between them using TPMs for key exchange. We see a future where trustworthy software can be built and fetched from nearly anywhere, and every device can be a node in a swarm of Nix binary caches. Follow along as we build a true edge CDN!

This presentation explores Adversarial Intelligence - an approach that views application security from an attacker’s perspective. Drawing from vulnerability research experience at the NSO Group and building Pegasus, the speaker will highlight how overlooked low and medium vulnerabilities can be combined to execute successful attacks. By examining attack chains and application runtime behavior, attendees will see how gaps often missed by traditional methods are exposed. Attendees will learn about effective tools and techniques for detecting and mitigating these threats.

AI chatbots are cool, but they are O(money) expensive or potentially run on some provider’s hardware with no real agency as to how and when things change. Today we’re going to learn how to design your own personal AI agent without breaking the bank and while retaining control of every part of the stack.

Cybersecurity Analyst burnout is real and stakes are higher than ever as all the data is stored completely digitally and threat actors are always after it. In detection and response, detection is not easily achieved and response is not fast. Chances are high that before an alert hits the SIEM/SOAR, some form of Machine Learning and Artificial Intelligence is already been used by the suite of cyber defense products in the SOC.

Artificial intelligence and game-based learning are converging and transforming education by making learning more efficient, personalized, and engaging. This talk will discuss how AI-driven adaptive learning systems can improve knowledge retention and problem-solving by tailoring content to individual learners. Drawing from his vast and storied experience in both video games and educational technology, Bushnell will explain how gamification, real-time feedback, and AI-driven pattern recognition enhance learning outcomes.

The current state of earthquake monitoring systems utilize standard algorithms that process seismic data and run software on local servers. While this system has proven effective for twenty-plus years, it is a dated system in need of modernization. The Southern California Seismic Network is exploring ways to generate earthquake products with modern software technologies such as cloud-native services, AI-powered models, serverless computing, containers, and infrastructure as code. The SCSN aims to develop a system that other networks might be motivated to adopt.

Step into the world of AI-driven data solutions with our focused session on semantic search using Apache Cassandra. We're cutting through the noise to show you how the current capabilities of Cassandra align with the demands of natural language processing and AI systems.
Whether you're managing large datasets or looking to infuse AI into your data strategy, join us to see how Cassandra stands up to the task now and how it's gearing up for an even more efficient future.


This talk is for Linux system administrators looking to understand and prepare for the impacts of post-quantum computing.

Understanding table-level locks in Postgres is a quite useful skill as almost all DDL operations require acquiring one of the different types of table-level locks on the object being manipulated. If not managed well, schema changes can result in downtime. In this talk we will explain fundamentals of table-level locking, covering how different types of locks are applied and queued during schema changes. Attendees will learn how to identify and manage lock conflicts to minimize downtime, avoid deadlocks, and maintain smooth database operations, even during high-concurrency schema changes.

Modern day APIs sometimes feel like demos for the main product, but it doesn't have to be that way. Developers continue to innovate by providing new sources of useful data that inspire creative new projects. In this talk, Addison Hart, a reverse engineer and data scientist with experience in geospatial, video game APIs and many others, will talk about what he has learned about making APIs, both from operating them and picking apart existing ones while reverse engineering. He will discuss API latency, quantity, coverage and quality and how these 4 aspects contribute to an APIs effectiveness.