Cloudflare says OpenAI models aid vulnerability discovery and fixes
Cloudflare says it is using OpenAI Daybreak models to investigate vulnerabilities and propose fixes, with Codex supporting developer productivity.
Fireblocks urges action after eMudhra intermediate certificate compromise
Fireblocks says eight compromised eMudhra intermediate CA certificates may affect some trust paths and has issued version updates for affected products.
OpenAI outlines cyber defense blueprint for frontier AI
OpenAI described safeguards and access controls for using frontier AI to strengthen cyber defenders and public institutions.
Patch the Planet expands coordinated disclosure for critical open source bugs
OpenAI and Trail of Bits say Patch the Planet coordinates researchers, maintainers and responders to validate and patch critical open source vulnerabilities.
NVIDIA details OpenShell reference architecture for AI agents
NVIDIA outlined OpenShell, Vera CPUs and BlueField-4 as a hardware-rooted stack for governing AI agent workloads on Oct. 21, 2026.
NVIDIA details Sentry runtime security for AI agents
NVIDIA says Sentry adds hardware-isolated monitoring and enforcement for AI agents using BlueField-4, DOCA Tower and DOCA Argus.
Microsoft warns of ‘agentic insiders’ in enterprise AI security
Microsoft says internal AI agents need continuous monitoring, with real-time controls, identity, permissions and traceability across enterprise systems.
Block says OpenAI tools speed security response; shares edge lower
Block said OpenAI technology is helping its security team investigate threats faster and draft patches in minutes, as shares traded at $75.85.
SentinelOne says OpenAI Daybreak cuts malware analysis to hours
SentinelOne said OpenAI Daybreak reduced malware analysis from weeks to hours, expanding capacity for threat investigation while keeping human review in place.
Third Moment Research says its agents can run for 36+ hours
OpenAI says Third Moment Research builds long-running AI agents using GPT-6 models for cybersecurity and workflow improvement.