Most of the companies nowadays have their firewalls, threat monitoring and prevention security appliances setup. With these mechanisms in place, security precautions are taken and incidents are monitored. Inbound traffic being restricted, SEES on the other hand is developed for sending targeted phishing emails in order to carry sophisticated social engineering attacks/audits.
SEES aims to increase the success rate of phishing attacks by sending emails to company users as if they are coming from the very same company’s domain. The attacks become much more sophisticated if an attacker is able to send an email, which is coming from email@example.com email address, to a company with domain example.org.