Threat Intelligence Briefing

Global threat activity represents a significant deviation, spiking by over 300% compared to the previous 6-hour period to 15,163 events. This surge is primarily driven by spam and attack traffic from the Netherlands (ASN 20473, 43350) and the US. Nordic activity remains stable and within expected baselines, with Finland (71 events) and Sweden (57 events) showing routine, multi-vector noise. The top threat IPs are overwhelmingly associated with SSH brute-forcing campaigns, indicating a coordinated offensive rather than isolated incidents. Focus defensive efforts on the identified SSH brute-force clusters originating from Dutch and Russian ASNs. Consider implementing temporary network-level rate-limiting rules for SSH traffic from these regions, as individual IP blocking is ineffective against this rotating infrastructure. Deprioritize the low-volume Nordic activity, which is consistent with background scanning.