Ukraine war

Ukraine cyber-operators are being deployed on the front lines of the war, duelling close-up with their Russian counterparts in a new kind of high-tech battle.

"We have people who are directly involved in combat," says Illia Vitiuk, the head of the Ukrainian Security Service's (SBU) cyber department.

Speaking inside the heavily protected SBU headquarters, he explains how his teams mix the skills of hackers and special forces - getting inside Russian systems, working alongside snipers and deploying the latest technologies.

The department uses Artificial Intelligence (AI) visual recognition systems to analyse information gathered from aerial drones (alongside intelligence from human sources, satellites and other technical sources) to provide targets for the military.