TCL Internship Week 3 Intern Demo | Group Project | Network Segmentation Failure + CVE-2026-1731

Описание: Week 3 Intern Demonstration – TCL Internship (Group Project)

In this session, TCL interns presented a real-world network failure simulation and conducted an advanced breach + risk governance analysis mapped to global security standards.

🧠 Lab Demonstration: Flat Network Disaster (Enterprise Segmentation Failure)

A startup infrastructure was analyzed where all systems existed on a single flat network — no VLANs, no segmentation.

⌬ Built full topology in Packet Tracer
⌬ Identified 8+ critical security risks
⌬ Demonstrated lateral movement escalation
⌬ Showed ransomware blast radius impact
⌬ Analyzed insider threat amplification

🛠️ Security Improvements Proposed:
⌬ VLAN redesign plan (Server, User, Management separation)
⌬ Firewall ACL restructuring (least privilege model)
⌬ ISO 27001 Annex A control mapping

💥 Research Focus: CVE-2026-1731 & European Commission Breach

⌬ Exploit timeline reconstruction (patch → disclosure → exploitation → response delay)
⌬ Control failure analysis (Preventive, Detective, Corrective layers)
⌬ Zero Trust architecture gap discussion
⌬ ISO 31000 risk lifecycle mapping
⌬ ISO 27001 Clause 6 & 8 analysis + Annex A technical controls

This session highlights:
⌬ Real-world enterprise network risk exposure
⌬ How poor segmentation accelerates breaches
⌬ Governance and vulnerability management failures
⌬ Offensive insight strengthening defensive strategy

📌 TCL Internship Series – Weekly showcases of intern labs, research, and applied cybersecurity learning.