You can take all the defensive steps you can think of then there is a Zero-Day!

Magnifying glass looking for a zero-day attack

A zero-day attack refers to the gap between the “secret” launch of a cyber attack and the subsequent discovery of the attack and mitigation being available. In this gap your defences have not yet been updated because your security vendor is unaware there is problem. Your systems a laid bare …

Email rules

The SANS Internet Storm Centre Diary has an interesting, if technical, article about the use and misuse of email forwarding rules. Office 365 Mail Forwarding Rules (and other Mail Rules too) (sans.edu) Why is this of interest to you? As part of my MSc studies we looked at email attacks …