With a degree in international relations, Guillaume Tissier was first a journalist specialized in economic and legal affairs, then a consultant at DATOPS, a company that publishes datamining solutions. He joined CEIS when it was founded in 1997 to develop its economic intelligence and risk management activities. Since 2013, he has also been leading the International Cybersecurity Forum (FIC), co-organized by CEIS and the Gendarmerie Nationale. President of CEIS since 2018, he becomes a partner of Avisa Partners when the two companies merge in January 2020.
![Image The Security of Executives: A Challenge for CISOs [by Guillaume Tissier, CEIS]](https://incyber.org//wp-content/uploads/2024/03/adobestock-749446930-1-885x690.jpeg)