"Rogues are very keen in their profession, and know already much more than we can teach them" said locksmither Alfred Charles Hobbs, who in 1851 demonstrated to

"Rogues are very keen in their profession, and know already much more than we can teach them" said locksmither Alfred Charles Hobbs, who in 1851 demonstrated to the public how state-of-the-art locks could be picked, in response to concerns that exposing security flaws in the design of locks could make them more vulnerable to criminals. This quote is not less true today when applied to blackhats. Open source doesn't mean secure, but security trough obscurity is not a good security model.