The Certified Ethical Hacker (CEH) is a vendor-neutral certification for security officers, auditors, security professionals, site administrators, and anyone who is concerned about the integrity of the network infrastructure. A Certified Ethical Hacker is a skilled professional who understands and knows how to look for the weaknesses and vulnerabilities in target systems and uses the same knowledge and tools as a malicious hacker. One exam is necessary to be certified: CEH (312-50).