The scenario described is a classic example of a phishing attack, which is a type of social engineering threat where attackers masquerade as a trustworthy entity in an electronic communication. The goal is to trick individuals into providing sensitive information. This represents an unauthorized action type of threat because it involves an attacker attempting to gain unauthorized access to personal information. Reference: = This understanding of phishing as a threat is consistent with the principles of information security management systems and is supported by resources that describe phishing attacks and their prevention