Is 51.8.121.161 malicious?
IP reputation report for 51.8.121.161: blocklist detections, geolocation, ASN, WHOIS and security posture, aggregated from 100+ threat intelligence sources.
51.8.121.161 is listed on 16 threat intelligence sources
Detected by 16 threat intelligence sources in the isMalicious dataset — review before trusting this IP.
Threat verdict
VerdictListed on blocklists
Appears on threat intelligence blocklists — treat with caution.
Blocklist detections16 sources
Categoriessuspicious, bruteforce, malware, phishing, attack, proxy
Confidence score100/100
Aggregated confidence across the sources reporting this indicator.
First seen2026-05-22
Last updated2026-05-22
Detections
- IPsum Level 1suspicious
- SSH Password Authbruteforce
- IPsum – malicious IP feedmalware
- Bitwire - Inbound Blocklistmalware
- Duggytuxy - Blacklist Ips For Fortinet Firewall Aa.txt
- Opendbl Net - Blocklistde All.listmalware
- Romain Marcoux - Malicious IPsphishing
- Blocklist - All SSH attacks (48h)attack
- Ultimate Hosts Blacklist - Blocklist.demalware
- ThreatHive - Hive Blocklist
- Data-Shield IPv4 Blocklistmalware
- Blocklist - All Attacks (48h)attack
- bitwire‑it IP blocklist – bad IPs updated every 2hmalware
- FireHOL - Firehol Anonymousproxy
- FireHOL - Firehol Proxiesproxy
- X4BNet - Datacenter IPv4 Rangesrisk