Echoing the stealth and menace of its namesake from "Dune," the Russian Sandworm group has been using its new backdoor, Kapeka, to infiltrate Eastern European entities. Researchers noted a global increase in brute-force attacks targeting various services, such as VPN and SSH. The North Korean Kimsuky is back in the headlines as it has been spotted exploiting DMARC for its phishing campaigns. Here are the top 10 highlights.