Threat Intelligence Briefing

Global threat activity decreased significantly, down 60.3% compared to the previous 6-hour period, with reconnaissance dominating at 92.8% of total events. This decline is not routine fluctuation—it marks a substantial deviation below the 7-day average, suggesting a coordinated pause or shift in attacker infrastructure. Nordic regions remain stable, with Sweden and Finland reporting expected levels of abuse and brute-force activity, primarily from known residential ISP segments. The most persistent IPs originate from Romania and Vietnam, linked to SSH brute-force campaigns, but no new emerging threats were observed beyond established patterns. Consider temporary blocking or rate-limiting the Romanian and Vietnamese IP clusters, particularly those under Unmanaged Ltd and Viettel Group, which show repeated malicious behavior. Deprioritize individual IP blocking from Datacenter/Hosting infrastructure, as volume remains low and consistent with background noise. Focus detection efforts on SSH brute-force signatures tied to these ASNs rather than ephemeral IPs, which are easily rotated.