IP Address: 121.170.12.120

Threat level: 5%

Attack count: 18

Country: South Korea

Region: Gyeonggi-do

City: Ansan-si

ASN: 4766

ISP: Korea Telecom

Net Block: 121.169.0.0-121.170.141.255

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

✅ Gordon

4 days ago

ipban 2.0.0

BruteForce

SMTP

✅ Arvoreen

8 days ago

fail2ban

BruteForce

postfix

✅ Tesi Supporto

8 days ago

fail2ban

BruteForce

tesi_postfix-auth

✅ Anonymous

13 days ago

Real-time Intercept: SMTP attack. Reference: 2026-07-27 19:42:51.4484 Login failure: 121.170.12.120 SMTP

BruteForce, Hacking

SMTP

✅ Tim Walker

13 days ago

ipban 1.8.0 - LogonDenied

BruteForce

MSExchangeLogs

✅ Anonymous

21 days ago

ipbanpro 5.0.0 - Invalid Username or Password

BruteForce

MailEnable

✅ Tim Walker

25 days ago

ipban 1.8.0 - LogonDenied

BruteForce

MSExchangeLogs