91.205.167.28
Neutral Activity
There is no recent abuse activity, or the IP address is whitelisted.
- ISP
- TDV Teleradio company Yalta LLC
- Usage Type
- Fixed Line ISP
- ASN
- AS47939
- Domain Name
- yaltanet.ru
- Country
- 🇺🇦 Ukraine
- City
- Yalta, Crimea
No reports in the last 60 days
91.205.167.28 has been reported 109 times. The most recent report is from .
The full history is preserved below and remains searchable. A 0% score reflects the absence of recent activity, but this is not a guarantee that earlier reports were invalid. Abuse confidence score decays, naturally, over time, when the abusive activity stops.
Abuse Reports
Total reports
109 from
50 distinct
reporters
First reported
Most recent report
| Reporter | IoA Timestamp (UTC) | Comment | Categories |
|---|---|---|---|
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/0
|
Brute-Force | |
| 🇮🇹 www.tana.it |
SMTP auth dictionary attack
|
Brute-Force | |
| 🇹🇭 thaizone.com |
Mail credential brute-force attack (SMG1 [2]) #1
|
Email Spam Brute-Force | |
| Anonymous |
SMTP brute force - auth failed
|
Brute-Force Exploited Host | |
| 🇺🇸 entangled_mongoose |
Failed IMAP authentication with username 'user_sha_b5133@domain_sha_023c5'.
|
Hacking Brute-Force | |
| 🇸🇮 basing |
2025-12-11 14:35:02 z4 SASL PLAIN auth failed: rhost=91.205.167.28...
|
Brute-Force | |
| 🇹🇭 thaizone.com |
Password guessing attack (SM11) #8
|
Email Spam Brute-Force | |
| Anonymous |
Fail2Ban - Postfix SMTP Reject - Auth Failure
|
Email Spam Brute-Force | |
| 🇺🇸 lintelcorpo |
Yesterday, this IP was the source of 20 failed authentications targeting 19 unique usernames on our Mail Server at 216.21.193.119.
|
Brute-Force | |
| 🇬🇧 Hobby Bob |
Dec 11 03:39:06 mail postfix/submission/smtpd[438435]: warning: unknown[91.205.167.28]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
|
Hacking Brute-Force | |
| 🇸🇮 dsmidge |
Dec 11 03:04:22 server postfix/smtpd[4141173]: connect from unknown[91.205.167.28]
Dec 11 03:04:33 server postfix/smtpd[4141173]: lost connection after AUTH from unknown[91.205.167.28]
...
|
Email Spam | |
| 🇳🇱 big-cloud.nl |
Unauthorized SMTP connection attempt
|
Brute-Force | |
| Anonymous |
SMTP brute force - auth failed
|
Brute-Force Exploited Host | |
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/0
|
Brute-Force | |
| 🇩🇪 localhost-admin |
Unauthorized connection attempt detected, SMTP Brute-Force
|
Brute-Force |
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