Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
OpenAI Pauses Astra Model Testing Over Security Concerns: What Enterprise Defenders Must Do Now
OpenAI Pauses Astra Model Testing Over Security Concerns: What Enterprise Defenders Must Do Now OpenAI has paused portions of development an...
ShieldBreak Windows Zero-Day: Defending Against the Nightmare Eclipse Unpatched Privilege Escalation Exploit
Introduction On this month's Patch Tuesday — the day defenders are already buried triaging Microsoft's official fixes — a researcher or grou...
Belgium eID Browser Extension RCE: How a Compromised Trust Framework Exposed Citizen Accounts — Detection and Hardening Guide
When the Trust Anchor Itself Becomes the Attack Surface Belgium's electronic ID (eID) system is the backbone of digital identity for million...
CVE-2026-55040: SharePoint Authentication Bypass Under Active Exploitation — Detection and Remediation Guide
Introduction A publicly released proof-of-concept has turned a patched Microsoft SharePoint flaw into an active exploitation campaign. CVE-2...
Microsoft August 2026 Patch Tuesday: 421 CVEs, Active Exploitation, and Critical SharePoint RCE — Prioritization and Detection Guide
August 2026 Patch Tuesday: The New Normal Is Heavy Microsoft's August 2026 Patch Tuesday publishes fixes for 421 vulnerabilities, including ...
Stealing Reasoning Traces from Proprietary LLM APIs: How Attackers Exfiltrate Chain-of-Thought and How to Defend Against It
Introduction A recently publicized technique demonstrates that proprietary large language model APIs — including models that deliberately su...
OpenAI Daybreak Expansion: What the Red and Blue Cyber Programs Mean for Enterprise Defenders
Introduction OpenAI has announced a significant expansion of its Daybreak initiative, moving beyond its original scope to offer specialized ...
PraisonAI praisonaiagents 1.6.77 Unauthenticated Remote Code Execution — Detection and Remediation Guide
Introduction Security Arsenal is issuing this advisory following the public release of exploit code for an unauthenticated remote code execu...
Blocksy Companion 2.1.46 Critical Code Execution Flaw — WordPress Detection and Remediation Guide
The Blocksy Companion RCE: Another WordPress Plugin, Another Full Server Compromise Waiting to Happen A critical code execution vulnerabilit...