Threat Intelligence Briefing

Global threat volume increased by +125.2% vs previous period, a significant deviation from typical baseline activity. This surge is primarily driven by reconnaissance and low-reputation traffic, with the US, China, and Germany as top source countries. Nordic nations show elevated but proportional activity, with Sweden (1541 events) and Finland (1064 events) leading regional threat volume. This pattern suggests a widespread scanning campaign rather than a targeted attack. The top threat IPs, predominantly from Romanian and Bulgarian networks, are conducting SSH brute-force and reconnaissance. Focus on the pattern, not the ephemeral IPs. Defenders should prioritize hardening SSH access points and implement network segmentation to contain reconnaissance efforts. Consider temporarily rate-limiting traffic from ASNs associated with the Romanian CIDR ranges 2.57.122.0/24 and 193.32.162.0/24, which are central to this campaign. Deprioritize individual IP addresses, as they are likely to be replaced quickly. This activity is widespread background noise but warrants increased vigilance on authentication services.