43) The Chief Information Officer (CIO) of a company has been receiving an increased amount of spam in the last month The CIO has not signed up for any newsletters or given contact information to any vendors during this time frame Which of the following techniques would a cybersecurity analyst employ to duplicate an external actor's methods of uncovering the CIO's email address'? (Select TWO) A) Social media profiling B) Email harvesting C) Packet capture D) Service discovery E) DNS harvesting