Microsoft launches AI cybersecurity model, agentic defense platform to cut enterprise security costs

Microsoft launched MAI-Cyber-1-Flash, a custom-built security model paired with an agentic defense platform (MDASH and Project Perception) that scores 96% on vulnerability-detection benchmarks whilst cutting costs roughly in half compared to current production systems. The system routes 90% of routine security tasks to the compact Flash model and escalates complex problems to OpenAI's GPT-5.4, demonstrating a hybrid architecture prioritising cost-efficiency over frontier model scale.

This Wire brief sits within Fusion42's coverage of Cybersecurity. Wire is Fusion42's founder-focused intelligence feed: each story is connected to the funds and startups it names — every one with a live profile on Raise or Scout — so founders can follow the capital and the momentum behind the headline rather than just the headline itself. Wire analysis is one of the live surfaces Arthur reasons over.