This IP address has been reported a total of
29
times from
22 distinct
sources.
91.107.121.55 was first reported on
, and the most recent report was
.
Recent Reports:
We have received reports of abusive activity from this IP address within the last week. It is
potentially still actively engaged in abusive activities.
2026-07-14T03:46:46.884135+00:00 edge-fog-swb01.int.pdx.net.uk sshd[1158588]: pam_unix(sshd:auth): a ...
show more2026-07-14T03:46:46.884135+00:00 edge-fog-swb01.int.pdx.net.uk sshd[1158588]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.107.121.55
2026-07-14T03:46:49.192797+00:00 edge-fog-swb01.int.pdx.net.uk sshd[1158588]: Failed password for invalid user ubuntu from 91.107.121.55 port 60458 ssh2
2026-07-14T03:46:51.966282+00:00 edge-fog-swb01.int.pdx.net.uk sshd[1158588]: error: PAM: Authentication failure for illegal user ubuntu from 91.107.121.55
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2026-07-14T03:23:13.298455+00:00 instance-20241019-1127 sshd[3235174]: Disconnected from authenticat ...
show more2026-07-14T03:23:13.298455+00:00 instance-20241019-1127 sshd[3235174]: Disconnected from authenticating user ubuntu 91.107.121.55 port 45248 [preauth]
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2026-07-14T02:00:13.681446+00:00 instance-20241019-1127 sshd[3234844]: Disconnected from authenticat ...
show more2026-07-14T02:00:13.681446+00:00 instance-20241019-1127 sshd[3234844]: Disconnected from authenticating user root 91.107.121.55 port 55272 [preauth]
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Hacking
Brute-Force
SSH
Anonymous
SSH brute force attempt. User: root, Pass: [REDACTED]
2026-07-12T12:04:55.634972+02:00 RYZEN-1 sshd[1784914]: Invalid user ubuntu from 91.107.121.55 port ...
show more2026-07-12T12:04:55.634972+02:00 RYZEN-1 sshd[1784914]: Invalid user ubuntu from 91.107.121.55 port 54322
2026-07-12T12:04:57.466991+02:00 RYZEN-1 sshd[1784914]: error: PAM: Authentication failure for illegal user ubuntu from 91.107.121.55
2026-07-12T12:04:57.467443+02:00 RYZEN-1 sshd[1784914]: Failed keyboard-interactive/pam for invalid user ubuntu from 91.107.121.55 port 54322 ssh2
2026-07-12T12:04:57.535778+02:00 RYZEN-1 sshd[1784914]: Received disconnect from 91.107.121.55 port 54322:11: [preauth]
2026-07-12T12:04:57.535807+02:00 RYZEN-1 sshd[1784914]: Disconnected from invalid user ubuntu 91.107.121.55 port 54322 [preauth]
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Jul 12 12:20:18 mx1 sshd[2030245]: Invalid user ubuntu from 91.107.121.55 port 36954
Jul 12 13:30:44 ...
show moreJul 12 12:20:18 mx1 sshd[2030245]: Invalid user ubuntu from 91.107.121.55 port 36954
Jul 12 13:30:44 mx1 sshd[2069176]: Invalid user ubuntu from 91.107.121.55 port 58646
Jul 12 15:54:10 mx1 sshd[2147846]: Invalid user ubuntu from 91.107.121.55 port 42360
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Brute-Force
SSH
Anonymous
2026-07-12T12:32:09.475641+08:00 HKCM1-20251208195653fcc911 sshd[196854]: Failed password for invali ...
show more2026-07-12T12:32:09.475641+08:00 HKCM1-20251208195653fcc911 sshd[196854]: Failed password for invalid user ubuntu from 91.107.121.55 port 54818 ssh2
2026-07-12T13:42:39.019520+08:00 HKCM1-20251208195653fcc911 sshd[196914]: Invalid user ubuntu from 91.107.121.55 port 40652
2026-07-12T13:42:39.032042+08:00 HKCM1-20251208195653fcc911 sshd[196914]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.107.121.55
2026-07-12T13:42:41.100448+08:00 HKCM1-20251208195653fcc911 sshd[196914]: Failed password for invalid user ubuntu from 91.107.121.55 port 40652 ssh2
2026-07-12T14:53:56.806094+08:00 HKCM1-20251208195653fcc911 sshd[196961]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.107.121.55 user=root
2026-07-12T14:53:58.367686+08:00 HKCM1-20251208195653fcc911 sshd[196961]: Failed password for root from 91.107.121.55 port 55000 ssh2
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Brute-Force
SSH
Anonymous
2026-07-12T11:57:07.107351+08:00 HKCM1-20260502115917ab4c7d sshd[66980]: Failed password for invalid ...
show more2026-07-12T11:57:07.107351+08:00 HKCM1-20260502115917ab4c7d sshd[66980]: Failed password for invalid user ubuntu from 91.107.121.55 port 55304 ssh2
2026-07-12T13:07:01.522611+08:00 HKCM1-20260502115917ab4c7d sshd[67709]: Invalid user ubuntu from 91.107.121.55 port 38522
2026-07-12T13:07:01.526172+08:00 HKCM1-20260502115917ab4c7d sshd[67709]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.107.121.55
2026-07-12T13:07:03.749175+08:00 HKCM1-20260502115917ab4c7d sshd[67709]: Failed password for invalid user ubuntu from 91.107.121.55 port 38522 ssh2
2026-07-12T14:17:55.003416+08:00 HKCM1-20260502115917ab4c7d sshd[68484]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.107.121.55 user=root
2026-07-12T14:17:57.759782+08:00 HKCM1-20260502115917ab4c7d sshd[68484]: Failed password for root from 91.107.121.55 port 53482 ssh2
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