Erdal Ozkaya’s Cybersecurity Blog

Erdal Ozkaya’s Cybersecurity Blog

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Personal blog of a cybersecurity professor and practitioner sharing advice on cyber defense and leadership

Identity for the Machine Age: A CISO’s Framework for Agentic AI Governance (2026 Edition)
NewsMay 26, 2026

Identity for the Machine Age: A CISO’s Framework for Agentic AI Governance (2026 Edition)

Enterprises must shift from treating AI as a simple application to governing autonomous agents through identity. The 2026 CISO framework outlines seven pillars—provenance, least‑privilege scopes, time‑bound credentials, secure transport, behavioral guardrails, auditability, and machine‑speed revocation—to secure agentic AI. By embedding...

By Erdal Ozkaya’s Cybersecurity Blog
Countering Terrorist Operations in the Age of Hybrid Warfare
NewsMay 9, 2026

Countering Terrorist Operations in the Age of Hybrid Warfare

Dr. Erdal Ozkaya announced his appointment as lecturer and advisor at NATO’s Centre of Excellence Defence Against Terrorism (COE‑DAT) for the upcoming “Terrorist Use of Cyberspace” course in Ankara. The curriculum will dissect surface‑web propaganda, hidden‑web supply chains, and the...

By Erdal Ozkaya’s Cybersecurity Blog
The Ozkaya Board Briefing Framework: How CISOs Win the 15 Minutes
NewsApr 30, 2026

The Ozkaya Board Briefing Framework: How CISOs Win the 15 Minutes

Dr. Erdal Ozkaya proposes a four‑step Board Briefing Framework—Risk, Decision, Metric, Ask—to replace the typical technical deep‑dives that leave boards disengaged. He shows how most CISO updates fail by speaking in jargon, presenting vanity metrics, or offering no decision, resulting...

By Erdal Ozkaya’s Cybersecurity Blog
Instagram Account Hacked? A Cybersecurity Expert’s Recovery & Prevention Guide (2026)
NewsApr 16, 2026

Instagram Account Hacked? A Cybersecurity Expert’s Recovery & Prevention Guide (2026)

A seasoned CISO outlines how Instagram accounts are hijacked and provides a step‑by‑step recovery plan. The guide identifies four primary attack vectors—phishing, credential stuffing, SIM swapping, and third‑party app abuse—accounting for the majority of compromises. Immediate actions include checking security...

By Erdal Ozkaya’s Cybersecurity Blog
Nessus Essentials: Complete Guide for Security Professionals (2026)
NewsApr 12, 2026

Nessus Essentials: Complete Guide for Security Professionals (2026)

Tenable’s free Nessus Essentials provides the same scanning engine and full plugin library as its paid versions, but restricts users to 16 IP addresses per activation and omits compliance, content‑audit, live‑update, virtual appliance, and agent capabilities. The rebranding removed the...

By Erdal Ozkaya’s Cybersecurity Blog
Introduction to Risk Management: A Complete Guide for Security Professionals
NewsApr 4, 2026

Introduction to Risk Management: A Complete Guide for Security Professionals

Dr. Erdal Ozkaya’s free guide delivers a complete, step‑by‑step introduction to cyber risk management, covering definitions, the seven core concepts, quantitative formulas, and the NIST Risk Management Framework. It shifts security teams from reactive alert firefighting to strategic decision‑making by...

By Erdal Ozkaya’s Cybersecurity Blog
Digital Forensics and Incident Response (DFIR): A CISO’s Guide
NewsApr 2, 2026

Digital Forensics and Incident Response (DFIR): A CISO’s Guide

Digital Forensics and Incident Response (DFIR) combines evidence collection with threat containment, forming a critical capability for CISOs. The guide outlines core functions—evidence preservation, malware and network analysis, and emerging cloud forensics—while stressing the need for pre‑enabled logging. It recommends...

By Erdal Ozkaya’s Cybersecurity Blog
OT Network Segmentation: A Practical Guide for Security Teams
NewsApr 2, 2026

OT Network Segmentation: A Practical Guide for Security Teams

Network segmentation is the most effective control for safeguarding operational technology (OT) environments, limiting attackers to isolated zones rather than allowing lateral movement. Implementing segmentation in OT differs from IT because industrial protocols and legacy equipment resist typical firewall solutions...

By Erdal Ozkaya’s Cybersecurity Blog
Incident Response Planning for Business Continuity
NewsApr 2, 2026

Incident Response Planning for Business Continuity

Organizations lacking a tested incident response plan face escalating costs, reputational damage, and evidence loss during cyber attacks. The article outlines the NIST incident response lifecycle—preparation, detection, containment, and post‑incident review—and stresses integrating business continuity to meet recovery time objectives....

By Erdal Ozkaya’s Cybersecurity Blog
OT vs IT Security: Why Industrial Environments Need Different Protection
NewsApr 2, 2026

OT vs IT Security: Why Industrial Environments Need Different Protection

The 2021 Oldsmar water‑treatment hack exposed how connected operational technology (OT) can be weaponised, highlighting the stark contrast between OT and traditional IT security. In OT, availability outweighs confidentiality, because a brief outage can trigger safety incidents or regional blackouts....

By Erdal Ozkaya’s Cybersecurity Blog
The CISO as a Business Leader: Moving From the Server Room to the Boardroom
NewsMar 15, 2026

The CISO as a Business Leader: Moving From the Server Room to the Boardroom

The article argues that the modern CISO must become a business leader, not just a technical specialist. It stresses translating technical risk into revenue‑impact language for the board. Key skills include aligning security initiatives with business outcomes, building executive relationships,...

By Erdal Ozkaya’s Cybersecurity Blog
Quantum-Safe Security: What CISOs Need to Know Now (Before It’s Too Late)
NewsMar 5, 2026

Quantum-Safe Security: What CISOs Need to Know Now (Before It’s Too Late)

Quantum computing threatens to break today’s asymmetric encryption, making current data protection obsolete. The most immediate risk is a “harvest now, decrypt later” attack, where adversaries steal data today and decrypt it once quantum capabilities mature. Experts estimate viable quantum...

By Erdal Ozkaya’s Cybersecurity Blog
The Ozkaya AI Governance Framework (OAIGF): Architecting Trust and Resilience in the AI Enterprise
NewsMar 1, 2026

The Ozkaya AI Governance Framework (OAIGF): Architecting Trust and Resilience in the AI Enterprise

The Ozkaya AI Governance Framework (OAIGF) is a practitioner‑driven methodology that equips CISOs with a comprehensive blueprint for secure, ethical, and compliant AI deployment at enterprise scale. Building on standards such as NIST AI RMF and ISO/IEC 42001, the framework defines...

By Erdal Ozkaya’s Cybersecurity Blog
Beyond the CLI: 5 Governance Questions Every CISO Must Ask Before Deploying Claude Code
NewsFeb 27, 2026

Beyond the CLI: 5 Governance Questions Every CISO Must Ask Before Deploying Claude Code

Anthropic’s Claude Code introduces a CLI‑based AI agent that can navigate repositories, draft patches, and run tests, turning code remediation into a near‑instant process. While the speed gains are compelling, the tool also grants autonomous execution rights that blur traditional...

By Erdal Ozkaya’s Cybersecurity Blog
Erdal Ozkaya’s Cybersecurity Blog | Pulse