🔥 Trending Certification · 2025

GIAC Certified Enterprise Defender (GCED)

Validate your expertise in defending enterprise networks against cyber threats. GCED-certified professionals demonstrate advanced skills in network security, penetration testing fundamentals, incident handling, and the technical defence of Windows and Linux environments.

Enterprise Defence Network Security Incident Handling Penetration Testing Windows & Linux Industry Recognised Career Defining

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Enterprise Network DefencePerimeter, segmentation & monitoring

Penetration Testing FundamentalsVulnerability assessment & exploitation

Incident HandlingDetection, containment & recovery

Windows & Linux HardeningOS-level defence and configuration

115

Exam Questions

3 hrs

Duration

69%

Passing Score

GIAC

Certified

Why It's Trending

Enterprise Defence Skills Are Mission-Critical

As cyber threats grow in scale and sophistication, organisations urgently need professionals with hands-on enterprise defence skills across network, endpoint, and OS layers.

Trending

68%

Of Enterprises Suffered Breach in 2024

Enterprise defenders with broad technical skills are essential to reduce breach risk across complex, hybrid environments.

16,000+

Open Enterprise Security Positions

Skilled enterprise defenders are among the most in-demand security professionals globally.

Trending

Broad & Deep

Advanced Practitioner Certification

GCED covers network defence, pen testing fundamentals, incident handling — making it one of GIAC's most comprehensive practitioner certs.

+32%

Salary Premium for Enterprise Defenders

Professionals with advanced enterprise defence skills command significant salary premiums across industries.

Course Content

Complete GCED Curriculum

Click any module to expand and explore the topics covered in detail.

Network Defence & Architecture

5 Topics

Defense-in-depth architecture principles

Network security monitoring and traffic analysis

Firewall policy design and implementation

Intrusion detection and prevention systems (IDS/IPS)

Network segmentation and microsegmentation strategies

Penetration Testing Fundamentals

5 Topics

Penetration testing methodology and scoping

Reconnaissance and vulnerability scanning techniques

Exploitation fundamentals and post-exploitation basics

Password attacks and credential harvesting

Web application vulnerability fundamentals

Windows Defence & Hardening

5 Topics

Windows Active Directory security configuration

Group Policy for security hardening

Windows event log analysis for threat detection

Credential protection and pass-the-hash mitigations

Windows Defender and endpoint protection configuration

Linux Defence & Hardening

5 Topics

Linux system hardening and baseline configuration

Linux log analysis and syslog monitoring

File system permissions and privilege management

Network service hardening on Linux

Linux intrusion detection and rootkit detection

Incident Handling & Response

5 Topics

Incident response lifecycle and phases

Initial detection, triage, and scoping

Containment strategies for network incidents

Eradication and recovery planning

Post-incident review and lessons learned documentation

Who Is This For

Designed for Enterprise Security Professionals

GCED is purpose-built for practitioners responsible for defending enterprise networks, systems, and endpoints against advanced threats.

Enterprise Security Engineers

Systems Administrators

Network Engineers

Incident Responders

Penetration Testers

IT Security Managers

FAQs

Frequently Asked Questions

What is the GIAC Certified Enterprise Defender (GCED) certification?

GCED validates advanced skills in enterprise network defence, covering network security architecture, penetration testing fundamentals, incident handling, and the technical defence of Windows and Linux environments.

What are the GCED exam requirements?

The GCED exam consists of 115 questions, is web-based and proctored, has a 3-hour time limit, and requires a minimum passing score of 69%. Proctoring is available via ProctorU (remote) or PearsonVUE (onsite).

What makes GCED different from other GIAC security certifications?

GCED is one of GIAC's most comprehensive practitioner certifications — it combines network defence architecture, penetration testing fundamentals, Windows and Linux hardening, and incident handling into a single advanced certification.

Who should pursue the GCED certification?

GCED is ideal for enterprise security engineers, systems administrators, network engineers, incident responders, penetration testers, and IT security managers who need broad, hands-on enterprise defence expertise.

Does GCED cover both offensive and defensive techniques?

Yes — GCED includes penetration testing fundamentals alongside defensive skills, giving professionals the attacker's perspective needed to build more effective enterprise defences.

Is GCED recognised by employers?

Yes — GCED is widely recognised by enterprises, government agencies, and MSSPs as validation of advanced, hands-on enterprise security skills across multiple technical domains.

Get Started

Master Enterprise Cyber Defence with GCED

Join Zetlan Technologies' GCED programme and develop advanced skills in network defence, Windows and Linux hardening, incident handling, and penetration testing fundamentals. Earn your GIAC certification and become the defender every enterprise needs.

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GIAC Certified Enterprise Defender (GCED)

Enterprise Defence Skills Are Mission-Critical

GCED Exam Details

Complete GCED Curriculum

Designed for Enterprise Security Professionals

Frequently Asked Questions

Master Enterprise Cyber Defence with GCED