In 2015, Kaspersky Lab’s Anti Targeted Attack Platform discovered a new, highly sophisticated APT inside its corporate network, called Duqu 2. In the lead up to announcing it publicly, it presented the corporate communications team with a completely new challenge, and set a new standard in how to communicate securely within the team. Two years on and Kaspersky is sharing this OpSec story publicly.Learning Objectives:1: Gain insight into the complexities communications teams face during modern attacks.2: Develop an understanding of new benchmarks in interdepartmental communications.3: Find out what happened inside Kaspersky Lab.