Threat Intelligence Briefing
Analysis period: 2026-04-03T18:00:01.464259 - 2026-04-04T00:00:01.464259 (6 hours)
Executive Summary
Global threat volume increased by 15.6% compared to the previous 6-hour period, representing a notable deviation from the established baseline. SSH brute-force attacks remain the dominant vector, primarily originating from IPs in Russia, Bulgaria, and the UAE. The Nordic region shows stable, low-level activity consistent with routine background noise, with Finland and Sweden experiencing minimal threat counts. The continued concentration of SSH attacks suggests an ongoing, persistent campaign rather than a new emerging threat, warranting attention to specific ASN ranges rather than ephemeral individual IPs.
Focus defensive actions on monitoring and potentially rate-limiting SSH traffic from high-risk ASNs in Eastern Europe and the Middle East. The Nordic activity does not warrant immediate escalation. Prioritize reviewing SSH server configurations and access logs for the patterns identified, as blocking individual IPs from this campaign is ineffective due to their transient nature.