123.121.123.107

Recent Activity This IP has received recent abuse reports, which causes the score to increase.
Abuse Confidence Score
77% Critical
18 reports
15 reporters · latest 3 days ago
ISP
China Unicom Beijing province network
Usage Type
Fixed Line ISP
ASN
AS4808
Domain Name
chinaunicom.cn
Country
🇨🇳 China
City
Beijing, Beijing
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Abuse Reports

Total reports
18 from 15 distinct reporters
First reported
Most recent report
Last 60 days
Top reporter locations 🇮🇹 Italy 2 🇳🇱 Netherlands 2 🇺🇸 United States of America 2
Most common categories Brute-Force 16 Hacking 2 Port Scan 2 Exploited Host 1 DDoS Attack 1
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.
Reporter IoA Timestamp (UTC) Comment Categories
Anonymous
Failed login attempt detected by Fail2Ban in plesk-postfix jail
Brute-Force
🇷🇴 clauss
IP reached maximum auth failures for a one day block
Brute-Force
🇭🇺 Lacika555
RdpGuard detected brute-force attempt on SMTP
Brute-Force
Anonymous
Authentication failure
Brute-Force
Anonymous
Port scan and brute force attack
Port Scan Brute-Force
🇨🇿 unhfree.net
Brute-Force Exploited Host
🇦🇹 AustrianSimon
04 Nov 2026 01:36:24UTC:Distributed Brute Force Password Attack (smtp, ftp, imap, pop, ssh) including ip address 123.121.123.107
Brute-Force
🇳🇱 maxxsense
(postfix-unknown) Failed postfix unknown login with username [redacted] from 123.121.123.107 (CN/China/-)
Hacking
Anonymous
Failed login attempt detected by Fail2Ban in plesk-postfix jail
Brute-Force
Anonymous
Authentication failure
Brute-Force
🇹🇷 Jova
Repeated failed SMTP logins to a mail account (credential guessing).
Brute-Force
🇮🇩 xveil
2026-11-02T15:17:07.634593 mail-honeypot postfix/submission/smtpd[3052]: warning: unknown[123.121.123.107]: SASL PLAIN authentication failed: authentication failure ...
Brute-Force
🇮🇹 VHosting
Detected mail brute force attack from different servers
Brute-Force
🇫🇷 Stara
Distributed smtpauth, imapd and ftp login attacks or more than 2 temp blocks in the last 259200 secs
Brute-Force DDoS Attack
🇩🇪 DocNetzwerk
(smtpauth) Failed SMTP AUTH login from 123.121.123.107 (CN/China/-)
Brute-Force

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