Wikipedia : Penetration tests are employed by organizations that hire certified ethical hackers to penetrate networks and computer systems with the purpose of finding and fixing security vulnerabilities. While unauthorized hacking, also known as Black Hat hacking, is illegal, penetration testing done at the request of the owner of the targeted systems is not. The EC-Council offers another certification, known as Certified Network Defense Architect (CNDA). This certification is designed for United
. States Government agencies and is available only to members of selected agencies
. States Government agencies and is available only to members of selected agencies