IP Address: 121.189.102.147

Threat level: 19%

Attack count: 10

Country: South Korea

Region: Jeju-do

City: Jeju City

ASN: 4766

ISP: Korea Telecom

Net Block: 121.187.86.0-121.189.166.255

Domain name: kt.com

Abuse contact: [email protected]

Stats (UTC)

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Last 24 Hours
Last 30 days
Last 12 months

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Timestamp

Notes

Flags

System

✅ Chris

10 hours ago

ipban 3.1.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Tim Walker

20 hours ago

ipban 4.1.0 - LogonDenied

BruteForce

MSExchange

✅ Tim Walker

2 days ago

ipban 4.1.0 - LogonDenied

BruteForce

MSExchangeLogs

✅ Anonymous

2 days ago

Real-time Intercept: SMTP attack. Reference: 2026-09-19 22:28:46.1158 Login failure: 121.189.102.147 SMTP

BruteForce, Hacking

SMTP

✅ Chris

2 days ago

ipban 2.0.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Arvoreen

2 days ago

fail2ban

BruteForce

postfix

✅ Tim Walker

2 days ago

ipban 4.1.0 - LogonDenied

BruteForce

MSExchange