Paris, France, Γαῖα
Software engineer on the first 64 bits Unix (Cray).
System & network admin. on top of a > 1000 Mac.
30 years experience on top of Unix (and internals).
Chief Information Security Officer.
Security through obscurity is darker than obscurity, there stand equally hidden trapdoors and firewalls, there is the kingdom of false security.
Q&A for power users of Apple hardware and software
Q&A for Information security professionals
Q&A for people studying math at any level and professionals in related fields
Q&A for computer enthusiasts and power users
Q&A for active researchers, academics and students of physics
Q&A for professional and enthusiast programmers
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Q&A for professional system and network administrators
Q&A for astronomers and astrophysicists
Q&A for software developers, mathematicians and others interested in cryptography