1. The philosophical debate of Security through obscurity, where people hope to hide rather than defend themselves from hackers. Controversy: This is a controversial topic. Non-security people will often claim that well-known security precautions are not necessary because it is unlikley that a hacker will find the obscure hole. Security professionals find this distressing because they have experience with the hacker community that regularly makes the obscure obvious. For example, buffer-overflow bugs are really obscure and hard to exploit, but once a hacker writes an automated exploit script or worm a once obscure vulnerability becomes widely known. From Hacking-Lexicon