IP address 5.223.51.3 has been flagged in 190 abuse reports across 6 independent threat intelligence sources, resulting in a threat score of 100.0/100 (critical risk). The primary activity associated with this IP is aggregated threat, along with attacks, severe abuse, spam, unknown.
This IP is geolocated in Singapore (Singapore) and belongs to the network Hetzner Online GmbH (AS215859). Reports span from 2025-11-10 to 2025-12-20.
Assessment: With 190 abuse reports, 5.223.51.3 shows persistent malicious activity that has been flagged by multiple threat intelligence feeds. The activity pattern and multi-source corroboration indicate this is a genuine threat that warrants immediate blocking at the firewall level. This IP belongs to Hetzner Online GmbH, a major cloud/hosting provider — the malicious activity likely originates from a compromised or rented virtual server rather than the provider's own infrastructure.