IP Address: 161.81.120.22

Threat level: 4%

Attack count: 8

Country: Hong Kong

Region: Central and Western District

City: Central

ASN: 137872

ISP: China Mobile Hong Kong Company Limited

Net Block: 161.81.0.0-161.81.255.255

Domain name: hk.chinamobile.com (www.hk.chinamobile.com)

Stats (UTC)

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

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Recent submissions

Reported by

Timestamp

Notes

Flags

System

✅ Tesi Supporto

22 hours ago

fail2ban

BruteForce

tesi_postfix-auth

✅ Chris

yesterday

ipban 3.1.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Tim Walker

yesterday

ipban 1.8.0 - LogonDenied

BruteForce

MSExchangeLogs

✅ Chris

6 days ago

ipban 2.0.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Anonymous

18 days ago

Real-time Intercept: SMTP attack. Reference: 2026-08-07 01:25:47.2695 Login failure: 161.81.120.22 SMTP

BruteForce, Hacking

SMTP

✅ Tesi Supporto

22 days ago

fail2ban

BruteForce

tesi_postfix-auth

✅ Chris

26 days ago

ipban 2.0.0 - Invalid Username or Password

BruteForce

MailEnable