A shadow war is raging in Ukraine, invisible to most people but critical to the outcome. Its warriors vow that no matter who wins the bloody battles on the streets, they will fight on.

Like a guerrilla army, Ukrainian cyberattackers like Yegor Aushev vow to hit their targets and move on, even if the larger battle looks lost. Aushev, the founder of numerous cybersecurity companies in Ukraine, said Thursday he’d recruited a group of guerrilla hackers inside and outside Ukrainian borders that even includes a handful of Russians who oppose President Vladimir Putin’s invasion.