What happens if I fail the exam?

You can retake it after a 24-hour cooldown, as many times as you need. Retakes are free, and each attempt draws a fresh random set of questions.

How long is a certificate valid?

The Safeguard Certified Practitioner credential is valid for 24 months from issue. The expiry date is printed on the certificate and shown live on its public verification page. Renewing means passing the current exam again.

Courses

Reducing Zero-Day Blast Radius: Hardening Before the Bug Is Known

AdvancedFree5 modules · 15 lessons · ~2 min

About this course

An advanced hardening course for Platform and DevOps teams that assumes the next zero-day is unknown by definition: defense in depth for dependencies, reachability to shrink what matters, least privilege, egress and admission control, self-healing containers, and provenance and pinned builds, with a working model of how each control changes blast radius.

What you'll learn

Assume the Next One Is Unknown

Blast Radius as a Design Problem, Not an Incident Metric
Mapping Your Current Blast Radius

Shrinking What Matters

Reachability Analysis: Cutting Noise and Cutting Radius Together
Dependency Defense in Depth: Firewall, Pinning and Minimal Base Images
Provenance and Pinned Builds: Knowing What You Actually Shipped

Containing the Blast

Least Privilege for Workloads and Service Identities
Egress Control: Stopping Exfiltration and Callback
Admission Control: Keeping Bad Images Out of the Cluster
Network Segmentation and Zero Trust Between Services

Self-Healing and Fast Response Infrastructure

Self-Healing Containers: Automatic Recovery From Compromise
Griffin Autonomous Remediation as a Hardening Control
Fast Patch Paths Built Into the Platform, Not Bolted On

Measuring and Proving Hardening

How Each Control Changes the Blast Radius of a Future Zero-Day
Metrics That Prove Hardening Without Waiting for a Real Incident
Building the Hardening Roadmap

01Assume the Next One Is Unknown2 lessons

Blast Radius as a Design Problem, Not an Incident Metric
Mapping Your Current Blast Radius

02Shrinking What Matters3 lessons

Reachability Analysis: Cutting Noise and Cutting Radius Together

Common questions

How much does Safeguard Academy cost?

Nothing. Every course, exam, and certificate on the catalog is free — including retakes. All you need is a free Safeguard account.

What are the prerequisites?

None. The flagship course, Safeguard Certified Practitioner, is a beginner-level course — basic familiarity with how software is built helps, but every exam question is answerable from the lessons themselves.