Threat Intelligence Briefing
Analysis period: 2026-04-09T18:00:02.200680 - 2026-04-10T00:00:02.200680 (6 hours)
Executive Summary
Global threat volume decreased significantly by 38.7% compared to the previous 6-hour period, with 1,680 events observed. This reduction is consistent with typical overnight activity patterns in the US and EMEA. A concentrated SSH brute force cluster from US-based IPs (87.251.64.144/29) remained the most active campaign, accounting for 45 events. Nordic countries showed minimal activity, with Sweden (7 events) and Norway (5 events) experiencing routine background noise consistent with their 7-day averages.
Focus defensive actions on the persistent SSH brute force cluster from ASN 1239 (Hetzner) rather than individual IPs. Consider implementing temporary rate-limiting for SSH traffic originating from this CIDR range. The overall reduction in volume allows teams to deprioritize widespread blocking and focus on this specific, high-volume pattern.