Other countries seeking data sharing agreements similar to the one with the U.K. include Turkey, Japan, India and most of Europe.

The ransomware has previously received little public scrutiny.

The search warrant targeted a Florida hosting company alleged to have facilitated the botnet activity.

The government-linked hacking activity is both an intel-gathering effort as well as a money maker, researchers say.

The internationally coordinated notice offers specific best practices for MSPs and customers amid warnings of increasing threats.

The British statement cites joint U.K./U.S. intelligence, representing the most formal U.S. attribution to date.

Even after the arrests, the group has released more stolen data.

The pledges follow the Biden administration saying that Russia's calculus on digital assaults had changed.

The group allegedly has targeted the defense, local government, oil and natural gas and telecommunications sectors in places including North America.

It's the second major network disruption on Ukrainian government sites in about a week.