Western intelligence agencies are investigating a cyberattack by unidentified hackers that disrupted broadband satellite internet access in Ukraine coinciding with Russia's invasion, according to three people with direct knowledge of the incident.

A Ukrainian cyber guerrilla warfare group plans to launch digital sabotage attacks against critical Russian infrastructure such as railways and the electricity grid, to strike back at Moscow over its invasion, a hacker team coordinator told Reuters.

The government of Ukraine is asking for volunteers from the country's hacker underground to help protect critical infrastructure and conduct cyber spying missions against Russian troops, according two people involved in the project.

Western intelligence agencies are investigating a cyberattack by unidentified hackers that disrupted broadband satellite internet access in Ukraine coinciding with Russia's invasion, according to three people with direct knowledge of the incident.

A Ukrainian cyber guerrilla warfare group plans to launch digital sabotage attacks against critical Russian infrastructure such as railways and the electricity grid, to strike back at Moscow over its invasion, a hacker team coordinator told Reuters.

The government of Ukraine is asking for volunteers from the country's hacker underground to help protect critical infrastructure and conduct cyber spying missions against Russian troops, according two people involved in the project.