scope:

This Recommendation provides security requirements and countermeasures for targeted email attacks, and includes the following information:

• The characteristics of targeted email attacks;

• The technical procedure of inbound and outbound targeted email attacks;

• Threats for targeted email attacks;

• Security requirements for types of inbound and outbound emails involving elements of malware, social engineering, and threats by user and attacker to counter targeted email attacks;

• Countermeasures against each type of email threat coming from inbound and outbound emails;