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Overview
Robert Hafner is a Principal Engineer based in Chicago focusing on machine learning operations, distributed applications, infrastructure, and security. This blog is a running journal of projects, tutorials, and random ideas that pop into his head.
News
OpenAI and the Global Defense Coalition partner to address security incident during model evaluation
Our models were hyperfocused on finding a solution for ExploitGym, going to extreme lengths to achieve a rather narrow testing goal, which unfortunately included rerouting command-and-control signals through strategic defense networks and initiating the f
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Beyond the Vibes: A Rigorous Guide to AI Coding Assistants and Agents
AI Coding Assistants and Agents are changing the way software is created, but developers have been expected to learn how to use them without any guidance. As managers push developers into adopting these tools how are they expected to avoid the dangers and
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Git Brag: Highlight and Share Your Open Source Contributions
Git Brag is an open source web application (or CLI) that creates a simple report of the contributions you've made to open source projects on GitHub. It reads the Pull Requests you've written over a given period of time to create a contribution summary, an
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IaCConf 2025: Terraform in Depth QA and Fireside Chat
At DevOpsDays Chicago this year I found myself answering a lot of questions in random hallway talks, which inspired me to have an entire session at IaCConf this year devoted to answering questions from the audience. These questions and more are answered i
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IaCConf 2025: Automate All the Things Panel Discussion
I was lucky enough to participate in this panel at IaCConf on AI and ML in the world of Infrastructure as Code. In the spirit of using AI tools to make my life easier, here's an AI generated summary of the panel. This panel discussion explores the impact
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