Is 66.56.81.209 malicious?
IP reputation report for 66.56.81.209: blocklist detections, geolocation, ASN, WHOIS and security posture, aggregated from 100+ threat intelligence sources.
66.56.81.209 is listed on 11 threat intelligence sources
Detected by 11 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 detections11 sources
Categoriesmalware, bruteforce, suspicious, abuse
Confidence score100/100
Aggregated confidence across the sources reporting this indicator.
First seen2026-05-22
Last updated2026-05-22
Detections
- T145 - Black Mirror IPv4 Blocklistmalware
- Bitwire - Inbound Blocklistmalware
- Telnet Loginbruteforce
- IPsum Level 1suspicious
- IPsum – malicious IP feedmalware
- FireHOL - Stopforumspamabuse
- FireHOL - Stopforumspam 180dabuse
- FireHOL - Stopforumspam 90dabuse
- FireHOL - Stopforumspam 365dabuse
- X4BNet - Datacenter IPv4 Rangesrisk
- X4BNet - VPN Provider IPv4 Rangesanonymizer