ITU-T X.1236 PDF

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.