Jonathan is a security research engineer holding an Engineering degree and a Master in Computer Science. Born in France, he's been living in Brazil and India, before currently working in Australia. With about 15 years of practice of assembly, he is specialised in low level security, from raw sockets to cryptography and memory corruption bugs. He is well known in the industry for his disruptive research on preboot authentication (breaking all the top tier BIOS passwords, and full disk encryption software - including Truecrypt and Microsoft Bitlocker-with a single exploit in 2008!) as well as Virtualization software. He is currently working as CEO and security consultant at the Toucan System security company. His clients count some of the biggest Defense and Financial Institutions worldwide. Jonathan is also the co-organiser of the Hackito Ergo Sum conference (HES2011) in France. Jonathan has been a speaker at a number of great intenational conferences including Defcon, HITB (Amsterdam & Kuala Lumpur), Ruxcon (Australia), Hackito Ergo Sum (France), H2HC (Brazil & Mexico) among others.
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