Michal Purzynski is a security engineer with Mozilla Corporation. He is deeply interested in information security and networking. A Linux kernel hacker, Michal helped to create RSBAC – Mandatory Access Control system. He architected and managed the technical side of the second largest data center in Poland. He built two cloud systems from the ground up, with a special focus on security and HA. He has been a software developer, system architect, project manager, sales support engineer and a customer support specialist. Michal has been working for Mozilla for over a year, in the Security Assurance – Operations team, mostly engaged in network security and building a Network Security Monitoring infrastructure.