A low-profile attack group known as Winter Vivern has recently been targeting government and private organizations in Ukraine, Poland, Italy, and elsewhere.
The U.S. and U.K. governments have sanctioned seven Russian men whom they allege are members of the Trickbot cybercrime group.
U.S. authorities have arrested Anatoly Legkodymov, the Russian alleged operator of the Bitzlato cryptocurrency exchange, which they say was a major hub for cybercriminal activity.
Mandiant researchers recently discovered a new software supply chain attack that targeted Ukrainian government agencies with trojanized Windows installers.
A new ransomware called Prestige has hit organizations in Poland and Ukraine using a variety of deployment methods.