Designing Scalable Interactive Visualizations with Reflex XY: Composition, Million-Point Rendering, Streaming, Custom Marks, and Export

In this tutorial, we explore the advanced visualization capabilities of the XY Python library by building interactive, scalable, and extensible charts. We begin with XY’s composition model, where we combine multiple marks, dual axes, annotations, tooltips, legends, themes, and interactive controls within a single chart declaration. We then work with Pandas DataFrames, faceted layouts, linked…

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Mistral AI Releases Shieldstral 1.0 3B: An Open-Weights Policy-Adaptive Multimodal Safety Classifier Matching Models 7× Its Size

Mistral AI has released Shieldstral 1.0 3B, an open-weights, policy-adaptive multimodal safety classifier that treats content moderation as a single yes/no question rather than a fixed taxonomy of harm categories. Most guardrail models bake their category list into the weights, so re-targeting one to a new deployment context means retraining — and the same content…

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Security researchers scanned the Polish web and found courts, hospitals, and airports at risk of hacks

Two Polish security researchers wanted to find out how vulnerable their country’s internet was to potential cyberattacks and quickly found that thousands of public agencies and websites were at risk of being hacked. At the Def Con cybersecurity conference in Las Vegas on Friday, security researchers Robert Kruczek and Kamil Szczurowski said they wanted to…

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