Welcome to IS4.ORG

The World's Only Space
Cybersecurity Certification

CSSSP Certification Program Course

Classroom Based Training Program

IS4 Community: CSSSP Study Group

About us

Did you know?
Tonex the leader in Space & Cybersecurity training and consulting services has created IS4 and CSSSP. Read the full story here

Certified Space Security Specialist Professional (CSSSP) certification is ideal for space and security practitioners, analysts, engineers, managers, and executives interested in proving their knowledge across space security best practices and principles.


Learn about IS4.Org’s all space cybersecurity programs.

Our Other Programs You Might Be Interested In


Learn IS4.ORG certifications &  programs


What Made IS4 So Special ?

IS4 Certification Programs. Whether you’re looking to accelerate your career with CSSSP or other Space certifications, Official (IS4.ORG) Certifications, we will help you to prepare with full confidence.

Awarded Space Security Cybersecurity Professional Services. Our mission is to provide the information, tools and insights to help you grow and excel in your career as a Certified Space Security Specialist Professional (CSSSP) and other space programs.

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