Joe, a penetration tester, used a professional directory to identify a network administrator and ID administrator for a client’s company. Joe then emailed the network administrator, identifying himself as the ID administrator, and asked for a current password as part of a security exercise. Which of the following techniques were used in this scenario?
A. Enumeration and OS fingerprinting
B. Email harvesting and host scanning
C. Social media profiling and phishing
D. Network and host scanning