Threat Intelligence Briefing

Global threat volume remains stable, showing a negligible -0.7% decrease compared to the previous 6-hour period, consistent with the 7-day average. SSH brute-force activity continues to dominate the threat landscape, with the top five most active IPs all linked to this category from ASNs in Russia, the Netherlands, and Romania. Nordic countries show routine, low-level background noise, with Finland (17 events) being the most active but still within its expected baseline. No significant deviations or emerging campaigns were identified. Given the persistent nature of SSH brute-forcing from known hostile networks, defenders should prioritize hardening internet-exposed SSH services with key-based authentication and consider implementing temporary blocking or rate-limiting for the most aggressive CIDR ranges associated with these attacks, particularly from the ASNs hosting the top threat IPs. Deprioritize individual IP addresses as they are ephemeral.