19th May 2026 Cyber Update: Exchange Zero-Day Puts On-Prem Mail Servers Back in the Spotlight
Microsoft has confirmed active exploitation of CVE-2026-42897, putting exposed on-prem Exchange and Outlook Web Access environments back under pressure.
OpenAI’s Daybreak and Anthropic’s Mythos signal more than a cyber arms race. They point to the rise of competing AI intelligence blocs where hyperscalers, cloud giants and select partners gain privileged access to frontier AI systems, reshaping industries, power and global competition.
Anthropic is scrambling to contain fresh questions over its Mythos AI after online users reportedly accessed the ultra‑powerful model through previously mapped pathways, sharpening Pentagon supply chain concerns and spooking markets already on edge about AI‑driven cyber risk
Anthropic’s Mythos clampdown, April’s record Patch Tuesday and Nvidia’s Blackwell‑to‑Rubin GPU roadmap mark a turning point in cyber defence, exposing how deeply allied nations now rely on US‑controlled, agentic AI to detect and counter zero‑day threats.
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