GIAC Certifications | 112,399 followers on LinkedIn. GIAC Certifications develops and administers more than 30 premier, professional information security certifications. | There are a multitude of information security certifications, but only GIAC certifications validate the true hands-on skills that go beyond theory and test the pragmatics of offensive and defensive, management, audit, forensics, and software information security. GIAC offers more than 30 specialized information security certifications that correspond to specific job duties. The family of GIAC certifications target job-based skill sets rather than taking the one-size fits all approach.