Security boundaries in agentic architectures 
Implementing a secure sandbox for local agents 
GPT-5.3-Codex System Card 
No Display? No Problem: Cross-Device Passkey Authentication for XR Devices - Keeping your data safe when an AI agent clicks a link
- Rust at Scale: An Added Layer of Security for WhatsApp
- Securely indexing large codebases
- Summaries of CVE-2025-59471 and CVE-2025-59472
- Summary of CVE-2026-23864
- Our approach to age prediction
When protections outlive their purpose: A lesson on managing defense systems at scale 
Hardening eBPF for runtime security: Lessons from Datadog Workload Protection - Hardening eBPF for runtime security: Lessons from Datadog Workload Protection
- Continuously hardening ChatGPT Atlas against prompt injection
- Addendum to GPT-5.2 System Card: GPT-5.2-Codex
- How AI Is Transforming the Adoption of Secure-by-Default Mobile Frameworks
- Update to GPT-5 System Card: GPT-5.2
- Strengthening cyber resilience as AI capabilities advance
- React2Shell Security Bulletin
- Summary of CVE-2025-55182