Ukraine war: Cyber-teams fight a high-tech war on front lines
By Gordon Corera
BBC Security correspondent
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.
"We understand which type of military weapons they are about to use and on what direction," Mr Vitiuk says.
His teams will also hack into surveillance cameras on occupied territory to watch Russian troop movements. And they direct kamikaze drones to take out Russian cameras spying on Ukrainian movements. Doing this often requires teams working undercover, close to the target.