Considering Russia spent the last decade waging an online information war against the West, it came as a surprise to many that, days into the invasion of Ukraine, Russia was the one losing the information war. But they were just getting started, and weeks after the war began, Kremlin allies deployed a new kind of troll farm. “Attention fighters,” the administrator of the Cyber Front Z Telegram channel told their 65,000 followers on Thursday morning. The Ukrainian singer Jamala was, they said, worthy of an attack. She’d “arranged a photo shoot with the flag of Ukraine in Britain,” the message...