On Monday, the U.S. and U.K. issued a series of joint statements warning about an ongoing Russian cyber campaign that aimed to support Russian intelligence gathering and even future offensive operations within the two nations.

The hacking effort has been targeting network infrastructure devices like routers, as well as “critical infrastructure” providers and even internet service providers themselves.

“Once you own the router, you own the traffic traversing the router,” chief Homeland Security cyber official Jeanette Manfra said, who characterized the cyber offensive as a “fairly broad campaign” that dates back to at least 2015.

Both nations cite Russia specifically in the headline of their bulletins, though it is important to note that Defense Officials have used the phrase “high confidence” to describe their level of certainty that the Russian government itself has been funding the effort. That assertion will almost certainly fuel the fire of conspiracy theorists claiming Russia is being targeted by Western powers.