IP Address: 121.162.61.229

Threat level: 38%

Attack count: 27

Country: South Korea

Region: Seoul

City: Seodaemun-gu

ASN: 4766

ISP: Korea Telecom

Net Block: 121.160.72.0-121.162.107.255

Domain name: kt.com

Abuse contact: [email protected]

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

✅ Tim Walker

yesterday

ipban 1.8.0 - LogonDenied

BruteForce

MSExchangeLogs

✅ Arvoreen

yesterday

fail2ban

BruteForce

postfix

✅ Anonymous

2 days ago

Real-time Intercept: SMTP attack. Reference: 2026-05-21 22:05:22.9147 Login failure: 121.162.61.229 SMTP

BruteForce

SMTP

✅ 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

✅ Tesi Supporto

2 days ago

fail2ban

BruteForce

tesi_postfix-auth

✅ Tim Walker

2 days ago

ipban 1.8.0 - LogonDenied

BruteForce

MSExchangeLogs

✅ Anonymous

3 days ago

Real-time Intercept: SMTP attack. Reference: 2026-05-20 13:24:49.5084 Login failure: 121.162.61.229 SMTP 2

BruteForce

SMTP

✅ tuya

3 days ago

ipban 1.9.0 - Authentication failed

BruteForce

SmarterMail

✅ Craig

3 days ago

ipban 2.0.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Chris

4 days ago

ipban 3.1.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Arvoreen

7 days ago

fail2ban

BruteForce

postfix

✅ Tim Walker

7 days ago

ipban 1.8.0 - LogonDenied

BruteForce

MSExchangeLogs