Jonathan leads the Microsoft Security Response Center Engineering team in investigating externally-reported security vulnerabilities and ensuring they are addressed appropriately via Microsoft's monthly security update process. Jonathan also acts as one of the engineering technical leads for the Microsoft company-wide Software Security Incident Response Process. The most important aspect of his work is helping customers find ways to reduce attack surface and protect themselves. Outside Microsoft work, Jonathan participates as a member of a reserve military unit helping to protect DoD networks and has written three-part "Gray Hat Hacking" book series.
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