Byer-Nichols Threat Brief for June 1-15 2026

Threat activity in early June picked up across the board, with DeadLock's sharp debut driving over a fifth of observed ransomware activity and mid-market organizations seeing a nearly 38% spike in targeting. Manufacturing held the top sector spot while retail surged to second. Shadow-Earth-066 emerged as the most concerning adversary with its rapid shift to automation-driven reconnaissance, and actively exploited vulnerabilities in WebLogic, Android, Cisco SD-WAN, and Check Point gateways kept d