Vega Security has successfully closed a $120 million Series B funding round, achieving a valuation of $700 million. The round was led by Accel.

The company aims to revolutionize enterprise cybersecurity by enabling threat detection where data resides, rather than centralizing it. This approach addresses the limitations of traditional SIEM tools, which struggle with the growing volume of security data.

Vega plans to use the funds to enhance its AI-native security operations suite and expand its market presence. The company has already secured contracts with major clients, highlighting the demand for its innovative solutions.

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This paper presents universal approximation theorems for Neural Ordinary Differential Equations (Neural ODEs), demonstrating their ability to achieve ε-δ closeness over an infinite time horizon ([0,∞)). This extends beyond the limitations of previous theorems that were restricted to finite time horizons or systems with globally stable equilibria.

The authors prove this capability for three classes of systems: (1) Morse-Smale systems with hyperbolic fixed points, (2) Morse-Smale systems with hyperbolic limit cycles via exact period matching, and (3) systems with normally hyperbolic continuous attractors via discretization.

Furthermore, a temporal generalization bound is established, showing that ε-δ closeness implies an L^p error ≤ ε^p + δ・D^p for all t ≥ 0. This bridges topological guarantees to training metrics, offering the first universal approximation framework for multistable infinite-horizon dynamics.

👉 Read the full article on arXiv

OpenAI has confirmed it will not use the branding “io” for its planned AI hardware device, according to a court filing related to an ongoing trademark dispute. This decision comes after a lawsuit was filed by audio startup iyO, stemming from OpenAI's acquisition of a hardware venture led by former Apple designer Jony Ive.

The company stated that it reassessed its naming plan and decided against using “io” (or “IYO,” in any capitalization) for its AI-enabled hardware products. OpenAI plans to move forward with a new name, which will be shared at a later date.

The court filing also indicates that OpenAI's first hardware device is now unlikely to ship before early 2027, pushing back earlier expectations of a second-half 2026 release. Specific product details remain limited, and no packaging or marketing materials have been created yet.

👉 Read the full article on Wired