Types of Penetration Testing We have five types of penetration testing − Black Box − Here, the ethical hacker doesn’t have any information regarding the infrastructure or the network of the organization that he is trying to penetrate. In black-box penetration testing, the hacker tries to find the information by his own means.Grey Box − It is a type of penetration testing where the ethical hacker has a partial knowledge of the infrastructure, like its domain name server.White Box − In white-box penetration testing, the ethical hacker is provided with all the necessary information about the infrastructure and the network of the organization that he needs to penetrate.External Penetration Testing − This type of penetration testing mainly focuses on network infrastructure or servers and their software operating under the infrastructure. In this case, the ethical hacker tries the attack using public networks through the Internet. The ...