State-sponsored Russian hackers are actively seeking to hijack essential internet hardware, US and UK intelligence agencies say. BBC reports: The UK's National Cyber Security Centre (NCSC), the FBI and the US Department of Homeland Security issued a joint alert warning of a global campaign. The alert details methods used to take over essential network hardware. The attacks could be an attempt by Russia to gain a foothold for use in a future offensive, it said. "Russia is our most capable hostile adversary in cyber-space, so dealing with their attacks is a major priority for the National Cyber Security Centre and our US allies," said Ciaran Martin, head of the NCSC in a statement. The alert said attacks were aimed at routers and switches that directed traffic around the net. Compromised devices were used to look at data passing through them, so Russia could scoop up valuable intellectual property, business information and other intelligence.