We've reported before that US authorities have been warning against imminent cyberattacks from Russia. This time, it's the cybersecurity authorities from the Five Eyes -Australia, Canada, New Zealand, the UK, plus the USA -who are warning of the risk that cyberattacks are being planned against critical infrastructures in Ukraine and beyond.

The warning comes in a joint cybersecurity advisory, which refers to US intelligence that the Russian government may be exploring options for potential cyberattacks.

The advisory also notes that cybercrime groups that have recently publicly pledged support for the Russian government 'have threatened to conduct cyber operations in retaliation for perceived cyber offensives against the Russian government or the Russian people.' The same threat exists for countries and organisations helping Ukraine.