OpenAI has introduced GPT-5.4-Cyber, a purpose-built variant of GPT-5.4 tuned to assist vetted security professionals with tasks previously reserved for specialized analysts. Rather than a general consumer release, this model is designed to lower refusal rates for legitimate cybersecurity workflows: binary reverse engineering, vulnerability scanning, malware analysis and exploit research. The announcement frames the model as a defensive accelerant —
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Google brings “Skills” to Chrome so Gemini prompts are instantly reusable
Chrome is getting another nudge toward becoming the home for Google’s AI toolbox. This spring Google introduced “Skills,” a way to save Gemini prompts inside the browser so common queries and workflows can be retriggered with a click. Rather than retyping or copy‑pasting a prompt each time you want Gemini to perform a task, Skills let you store and reuse
OpenAI Acquires Hiro Finance to Bolster AI Financial Planning
OpenAI has officially confirmed the acquisition of Hiro Finance, an AI-powered personal finance startup founded by serial entrepreneur Ethan Bloch. The deal, which follows Hiro’s recent launch of a specialized financial modeling tool, marks a strategic move by OpenAI to deepen its expertise in high-stakes mathematical accuracy and consumer fintech. Backed by heavyweights like Ribbit Capital and General Catalyst, Hiro
OpenAI Revokes macOS App Certificate After Axios Supply-Chain Compromise
OpenAI has publicly disclosed a supply‑chain incident that affected the signing workflow for its macOS applications and, out of caution, is revoking and rotating the certificate used to notarize those apps. The company’s investigation found that a GitHub Actions workflow used in the macOS signing process pulled a compromised release of the widely used npm library Axios (version 1.14.1). Although
Project Glasswing: Anthropic’s Claude Mythos Preview Arms Defenders to Secure Critical Infrastructure
When Anthropic announced Project Glasswing, it felt like a turning point in how we think about cybersecurity. Rather than another incremental tool, Glasswing pools one of the most capable frontier language models—Claude Mythos Preview—with an unusual, urgent mission: give the organizations that run the internet and financial systems a head start against AI-enabled attackers. The initiative reads like a playbook
Anthropic Withholds Mythos Preview: Too Potent a Cyber Threat to Release
Anthropic’s decision to withhold the Claude Mythos Preview has punctured the usual celebratory arc of model announcements. Rather than rushing to commercialize another frontier AI, the company says Mythos demonstrated capabilities that could be exploited to find and chain high-severity vulnerabilities in widely used systems—so serious that Anthropic is choosing limited, defensive deployment over general release. A startling discovery in