Richard, an attacker, targets an MNC. in this process, he uses a footprinting technique to gather as much information as possible. Using this technique, he gathers domain information such as the target domain name, contact details of its owner, expiry date, and creation date. With this information, he creates a map of the organization's network and misleads domain owners with social engineering to obtain internal details of its network. What type of footprinting technique is employed by Richard?
正解：D
Explanation Email header reveals information about the mail server, original sender's email id, internal IP addressing scheme, also because the possible architecture of the target network. Tracking Email Communications* Email tracking is employed to watch the delivery of emails to an intended recipient.* Attackers track emails to collect information a few target recipient so as to perform social engineering and other attacks.* Get recipient's system IP address* Geolocation of the recipient* When the e-mail was received and skim* Whether or not the recipient visited any links sent to them* Get recipient's browser and OS information* Time spent on reading the emails
