Leo has owned and operated The Security Matrix, LLC since 1996.  Some years I’m more active than others.  Recently this has led to the development of www.TheCodeOfLearning.com which focuses on eLearning of career certifications.

Leo has also written courseware and test questions for the several of the certifications listed here:

• EC-COUNCIL: CEH, CHFI, ECSA, LPT, ECIH, CISO
• ISC2: CISSP, ISSEP, ISSAP, ISSMP
• PMI: PMP
• SANS: GIAC (GGSC-0100), GAWN (Wireless), GCIH (Incident Handling)
• Security Certified: SCP-Tactical Perimeter, SCP-Strategic Infrastructure
• Cisco: CCNA, CCDA, CCNP
• CompTIA: Network+, Security+, A+
• Microsoft: MCP, MCSA, MCSE 2000, MCSE 4.0, MCP+I, MCT
• Additional Expertise: LM21 (Six Sigma) Green Belt Training, Sourcefire 3D Solutions 4.0, Snort Rules 2.4, & CWNA