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Contact UsCybersecurity Leadership
David R. Miller teaches security leadership and CISSP preparation from decades of work translating complex systems into concepts professionals can use on the job. A SANS Principal Instructor, President at MicroLink Corporation, and lead instructor for LDR414: SANS Training Program for CISSP® Certification, David brings experience as a network engineer, consultant, security designer, architect, author, and technical instructor into the classroom. His work helps students connect broad security domains to practical judgment across risk, architecture, operations, compliance, and governance.
David does a great job presenting the material and relating it to real world situations. Class pace is perfect.
This course was great. David knew his stuff and had meaningful input on every relevant CISSP question that was asked of him. I feel like this course helped to solidify skills that I have with relevant information and helped me think about cyber security in a much more holistic way.
David is obviously very knowledgeable and I think he's a very good instructor. You can tell he really cares about his job. He has also made himself very accessible during and after class.
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