GUILLAUME CHARREYRON

IT Security Consultant

Consulting firm with strong added value in the field of the computer systems security , Oppida has a wide experience feedback in sectors highly sensitive of the industry, from the banking environment to the French administration.

Here are the missions I was involved in:

Project management Assistance: firewalls benchmarking for a French worldwide entity
-Edition of the specification book in close collaboration with the customer.
-Prospecting on the CC, ITSEC and ICSA certified firewalls basis - 10 short-listed firewalls.
-Deepened test phase by checking if the listed firewalls correspond to the specifications - 4 finally selected firewalls.
-Training on these selected firewalls with a customer engineer.
-Deployment assistance in main foreign agencies (Paris, Dublin, Madrid, New York, Singapore). Local instruction to the local administrators

Formation and sensitization to IT Security for CNRS and CEA officers and system administrators, including:
-Introduction to IT Security
-Demonstration of an intrusion
-Secure behavior

Technological survey:
-Constitution of a vulnerability database, including pertinence analysis
-Conception of a survey platform, including formation and edition of users and administrators manuals

Conception of a portable platform dedicated to intrusive tests: multiboot laptops containing the main intrusive tools used for audits.

Realization of security audits (vulnerability analysis and intrusive audits) for important companies such as Banque de France, Michelin and Société Générale. Black and white hat audits, with:
-Edition of tests plan including induced risk (I, C, A)
-Customer tests plan validation
-Realization of the tests
-Edition of a security exigencies file to improve the security level in a homogenous way.

Sector: Consulting and Services