TECH NEWS

Spectre rears its ugly head again as researchers show some RISC-V chips are susceptible

Eight years on, we're still paying to hide the future glimpsed during speculative execution

If you thought that the famous Spectre security vulns were a relic of 2018, think again. Certain RISC-V chips are still very much subject to this hair-raising hole, researchers say.

Spectre refers to a family of vulnerabilities related to speculative execution, a performance optimization technique based on predicting the flow of data before instructions have been executed. Incorrect predictions get rolled back without affecting running applications but nonetheless leave traces that can be recovered and exploited to violate memory protections and access secrets.

Spectre flaws have dogged x86 and ARM chips for years, leading computer scientists to develop a series of defenses, including Indirect Branch Restricted Speculation (IBRS), Indirect Branch Prediction Barrier (IBPB), and Single Thread Indirect Branch Predictor (STIBP).

Researchers affiliated with academic institutions in Belgium and Germany say that it's been popular to assume...

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Claude Opus 5.5 comes to Microsoft Foundry for long-running coding and knowledge work

AI models are increasingly taking on work that extends far beyond a single prompt: building a feature across a codebase, investigating a complex issue, synthesizing hundreds of pages of information, or working through a multi-step business process. As that work gets longer, raw intelligence is only part of what matters.

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GPT-6 Astra, Sol, and Luna: For production agents in Microsoft Foundry

Today, we are expanding our GPT-6 series by welcoming GPT-6 Sol and GPT-6 Luna to our generally available lineup in Microsoft Foundry. Building on the exceptional customer momentum of GPT-5.6 Sol and GPT-6 Astra, this launch continues our work to deliver transformative capabilities in Microsoft Foundry that produce less

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Claude Opus 5.5 comes to Microsoft Foundry for long-running coding and knowledge work

GPT-6 Astra, Sol, and Luna: For production agents in Microsoft Foundry

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