Threat Intelligence Briefing

Global threat volume decreased by 10.1% compared to the previous period, consistent with routine daily fluctuations. Nordic activity remained stable, with Sweden (664 events) and Finland (333 events) showing expected reconnaissance and attack patterns. Notably, a cluster of SSH brute force attacks from Polish (87.251.64.0/24) and Romanian (2.57.121.0/24) networks persisted, representing a multi-day campaign rather than a new threat. This activity aligns with established threat actor infrastructure targeting exposed services. Defenders should prioritize monitoring and hardening SSH endpoints, particularly against these known CIDR ranges. Consider implementing network-level blocking for the persistent Polish and Romanian subnets. Routine traffic from other regions can be deprioritized as it represents background noise.