IP Address: 123.13.91.64

Threat level: 10%

Attack count: 16

Country: China

ASN: 4837

ISP: CHINA UNICOM China169 Backbone

Net Block: 123.4.0.0-123.15.255.255

Domain name: chinaunicom.cn

Abuse contact: [email protected]

Stats (UTC)

Last 60 Minutes
Last 24 Hours
Last 30 days
Last 12 months

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Recent submissions

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Timestamp

Notes

Flags

System

✅ Tim Walker

2 days ago

ipban 1.8.0 - LogonDenied

BruteForce

MSExchangeLogs

✅ Chris

2 days ago

ipban 3.1.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Tim Walker

3 days ago

ipban 1.8.0 - LogonDenied

BruteForce

MSExchangeLogs

✅ Chris

3 days ago

ipban 3.1.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Anonymous

4 days ago

ipbanpro 5.0.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Craig

4 days ago

ipban 2.0.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Anonymous

4 days ago

Real-time Intercept: SMTP attack. Reference: 2026-07-24 23:18:43.2166 Login failure: 123.13.91.64 SMTP

BruteForce, Hacking

SMTP

✅ Chris

4 days ago

ipban 3.1.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Tesi Supporto

4 days ago

fail2ban

BruteForce

tesi_postfix-auth