Oguchi is a hacker who has crafted an email to collect bank account numbers from victims when they click the link inside it. He sends this email to the COOs and CFOs of Standard Federal. What type of attack is this?

Domain 6: Security Assessment and Testing Practice Questions
Questions from the following topics are included in this domain: 
Designing and validating assessments and tests
Conducting security control testing
Collecting security process data
Analyzing test output data and generating reports 
Conducting and facilitating security audits