Maximum Danger
IP 204.76.203.226 is a critical-risk address operated by Pfcloud UG (haftungsbeschrankt) under AS51396 in the Netherlands, associated with 482 reported incidents of hacking activity detected between April and May 2026, indicating sustained and aggressive intrusion attempts against exposed services.
Automated honeypot sensors recorded all 482 reports attributed to this address over approximately two months, yielding a confidence score of 94 percent. The activity frequency rating of 8 out of 10 confirms that this IP maintains persistent scanning and exploitation behavior rather than opportunistic single-pass attacks. Pfcloud UG (haftungsbeschrankt) operates AS51396, a network provider whose infrastructure has now accumulated a significant abuse footprint centered on unauthorized access attempts. The concentration of exclusively hacking-related reports suggests a focused campaign rather than generic reconnaissance.
Hacking activity as logged here encompasses diverse intrusion methodologies including vulnerability exploitation, credential attacks, and attempts to establish unauthorized system access. For any exposed service, this means concrete risk of compromise, data exfiltration, lateral movement within networks, or deployment of secondary attack payloads. The volume and consistency of reports indicate that this IP is actively cycling through attack vectors rather than relying on a single technique, increasing the probability of successfully breaching unpatched or misconfigured systems.
Site operators should immediately block IP 204.76.203.226 at the firewall level and implement deny-by-default network access policies. Deploying tools such as fail2ban or equivalent rate-limiting solutions will automatically block repeated connection attempts from this source. Ensuring all systems remain current with security patches eliminates known vulnerabilities commonly targeted in such campaigns. Finally, reviewing authentication logs for any matching connection attempts and strengthening access controls on exposed services will reduce the attack surface available to this threat actor.
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