IP address 187.51.208.158 has been flagged in 1472 abuse reports across 30 independent threat intelligence sources, resulting in a threat score of 100.0/100 (critical risk). The primary activity associated with this IP is abuseipdb blacklist, along with aggregated threat, attacks, brute force, bruteforce, known attacker, known malicious, malware c2, malware infrastructure, persistent attacker, port scan, reconnaissance, reputation low, scanning, ssh brute force, ssh bruteforce, suspicious activity, unknown, voip attack, web attack, web brute force.
This IP is geolocated in Brazil (Santos) and belongs to the network TELEFONICA BRASIL S.A (AS10429). Reports span from 2025-07-04 to 2026-10-05.
Assessment: 187.51.208.158 is among the most actively malicious IP addresses in our database, with over 1472 abuse reports from 30 independent sources. The IP has been observed conducting automated SSH login attempts against internet-facing servers, a technique commonly used to gain unauthorized access to systems.