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OpenAI Expands Cyber Defense Program: GPT-5.4-Cyber Now Available to Security Teams

Key Findings OpenAI unveiled GPT-5.4-Cyber, a cybersecurity-focused variant of its flagship GPT-5.4 model optimized for defensive security operations The company is expanding its Trusted Access for Cyber (TAC) program to thousands of individual defenders and hundreds of security teams GPT-5.4-Cyber has already contributed to over 3,000 critical and high-severity vulnerability fixes through the Codex Security application Access will be controlled through Know-Your-Customer ver

2 days ago2 min read

Citrix NetScaler Critical Vulnerability Enables Unauthenticated Data Leaks - Immediate Patching Required

Key Findings Citrix released patches for two critical NetScaler vulnerabilities affecting ADC and Gateway products CVE-2026-3055 (CVSS 9.3) is a memory overread flaw allowing unauthenticated attackers to leak sensitive data from appliance memory Vulnerability only affects systems configured as SAML Identity Providers, not default configurations CVE-2026-4368 (CVSS 7.7) is a race condition causing session mix-ups in gateway and AAA server deployments No public exploits current

Mar 242 min read