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Four big enterprise lessons from Walmart’s AI security: agentic risks, identity reboot, velocity with governance, and AI vs. AI defense

Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now VentureBeat recently sat down (virtually) with Jerry R. Geisler III, Executive Vice President and Chief Information Security Officer at Walmart Inc., to gain insights into the cybersecurity challenges the world’s largest retailer faces as AI becomes increasingly autonomous. We talked about securing agentic AI systems, modernizing identity

Inside Walmart’s AI security stack: How a startup mentality is hardening enterprise-scale defense

Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now VentureBeat recently sat down (virtually) with Jerry R. Geisler III, Executive Vice President and Chief Information Security Officer at Walmart Inc., to gain insights into the cybersecurity challenges the world’s largest retailer faces as AI becomes increasingly autonomous. We talked about securing agentic AI systems, modernizing identity

Isle FPGA Computer: creating a simple, open, modern computer

Published 01 Aug 2025 (DRAFT) Be not afeard; the isle is full of noises, Sounds, and sweet airs, that give delight and hurt not. Shakespeare, The Tempest I'm creating a computer called Isle. In this post, I'll introduce you to Isle and hope to inspire you to come on a journey with me and build your own computer. This introduction is still in draft and will evolve as Isle evolves. Isle is a simple, modern computer — an open design that encourages tinkering, experimentation, and doing your own

More honey bees dying, even as antibiotic use halves

Despite tighter restrictions on antibiotics used in Canadian beekeeping, honey bee death rates are still rising. A new study led by University of Guelph researchers, published in Nature Sustainability, is the first large-scale project to assess antibiotic usage trends and their impact on honey bee health in Canada. The withdrawal of antibiotics, following recent regulation changes, was one of the top predictors of honey bee overwintering mortality — a result that surprised lead author Dr. Bren

This Experimental Weight Loss Drug Works Without the Nausea or Vomiting

What if you could lose weight with a drug that won’t make you lose your lunch at the same time? New research shows it might be possible. Scientists at the University of Pennsylvania, the University of Kentucky, and other institutions say they’ve found a potentially novel way to suppress people’s appetite and treat obesity—without causing the nausea or vomiting commonly experienced with semaglutide (the active ingredient in Ozempic and Wegovy). In early animal experiments, the team’s experimenta

Metal Detectorist Discovers Potential 2,000-Year-Old Divination Spoon

If you had to imagine an object that could tell the future, you’d probably envision a crystal ball or a deck of Tarot cards—not a utensil. Nevertheless, experts on the Isle of Man have revealed an artifact that might be exactly that: a divination spoon. A metal detectorist has unearthed an ancient bronze spoon that Iron Age people may have used to forecast the future approximately 2,000 years ago. While this is the 28th potential “divination spoon” known to scholars worldwide, it’s the first to