Britain may already be at war with Russia because of the depth and intensity of cyber-attacks, sabotage and other hostile activity orchestrated by Moscow against the UK, according to a former head of MI5. “I think she may be right in saying we’re already at war with Russia. It’s a different sort of war, but the hostility, the cyber-attacks, the physical attacks, the intelligence work is extensive,” she said. Pat McFadden, then the Cabinet Office minister, said last year that Russia had stepped up its cyber-attacks against the UK. While the source of the attacks can take time to detect, many are suspected to have originated in Russia.