Awarded for completing The Open Systems Interconnection (OSI) Model: Seven Layers for Security Engineers and passing its exam, demonstrating the ability to name, place and reason accurately about every layer, compare the model honestly to TCP/IP, and triage a symptom to the correct layer.
Certificates are designed to be checked, not just displayed.
The credential is valid for 12 months from issue. Its public page states the expiry date, and renewing means passing the current exam again — so the credential always reflects the current material.
