Extreme Threat
IP 204.76.203.73 is a critical-risk address operated by Pfcloud UG (haftungsbeschrankt) in the Netherlands that has generated 1,724 abuse reports from automated honeypot sensors since January 2026, indicating sustained and aggressive hacking activity. The IP carries the maximum possible threat score of 10 out of 10 and an activity frequency rating of 8 out of 10, placing it among the most persistently malicious addresses observed in recent threat telemetry. With 20 confirmed hacking-category reports, this address warrants immediate blocking on any exposed infrastructure. The 88% confidence score indicates high certainty that this traffic represents deliberate malicious probing rather than misconfiguration or benign scanning.
The detection profile for 204.76.203.73 reflects coordinated intrusion attempts captured by 20 separate honeypot sensor instances, suggesting the address is systematically scanning and attacking target systems across multiple deployment locations. The January-to-May 2026 reporting window demonstrates persistent activity spanning approximately five months, indicating an established and ongoing threat rather than a transient scanning event. Pfcloud UG (haftungsbeschrankt), the ASN AS51396 operator based in the Netherlands, appears to be hosting infrastructure utilized primarily or exclusively for adversarial purposes given the concentrated abuse volume and threat classification.
The hacking activity attributed to this IP encompasses diverse intrusion methodologies including exploitation attempts against vulnerable services, credential-based attack patterns, and unauthorized access probing. The sustained report frequency indicates the address is actively engaged in reconnaissance and exploitation cycles rather than passive scanning, elevating the concrete risk to any exposed services to a significant level. Systems running outdated software, exposed authentication portals, or vulnerable network services face immediate compromise risk from this source.
Organizations should implement blocking mechanisms for 204.76.203.73 at network perimeters, deploy rate-limiting on authentication endpoints to disrupt automated attack patterns, and ensure all exposed services run current security patches. Continuous traffic analysis paired with tools like fail2ban can identify and mitigate similar malicious sources in real time. Security teams should treat this IP as confirmed hostile and apply defensive controls accordingly to protect organizational assets from compromise.
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