5.26.131.240

Activity Trending Down This IP hasn't received reports recently, which causes the score to decay.
Abuse Confidence Score
50% Elevated
141 reports
73 reporters · latest 2 weeks ago
ISP
TURKCELL INTERNET
Usage Type
Fixed Line ISP
ASN
AS16135
Domain Name
turkcell.com.tr
Country
🇹🇷 Turkey
City
Istanbul, Istanbul
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Abuse Reports

Total reports
141 from 73 distinct reporters
First reported
Most recent report
Last 60 days
Top reporter locations 🇩🇪 Germany 12 🇫🇷 France 7 🇮🇹 Italy 7
Most common categories Brute-Force 53 Hacking 11 Email Spam 10 Port Scan 10 Exploited Host 7
Old reports The most recent abuse report for this IP address is from . It is possible that this IP is no longer involved in abusive activities.
Reporter IoA Timestamp (UTC) Comment Categories
Anonymous
Failed login attempt detected by Fail2Ban in plesk-postfix jail
Brute-Force
🇩🇪 EGP Abuse Dept
Scanning for port/service exploits on tpc-016.mach3builders.nl
Port Scan Hacking
Anonymous
Failed login attempt detected by Fail2Ban in plesk-postfix jail
Brute-Force
🇩🇪 MAM
IMAP/Submission attempt
Hacking
Anonymous
2026-09-27T08:24:03.808781 biopolis.pcconsultant.it postfix/smtpd[2257319]: warning: unknown[5.26.131.240]: SASL PLAIN authentication failed: authentication failure, [email protected] ...
Brute-Force
Anonymous
Authentication failure
Brute-Force
🇦🇺 Bay13
CrowdSec:custom/postfix-non-smtp-command
Hacking
🇧🇬 sanitariu
Sep 26 15:04:36 dri postfix/smtpd[3730098]: warning: unknown[5.26.131.240]: SASL PLAIN authentication failed: (reason unavailable), sasl_username=admin ...
Brute-Force
🇸🇪 Juha Jurvanen
Blocked by Scantide Guard on exchange-smtp-failed-auth. Rule: AbuseIPDB confidence 100% (Scantide Guard reputation policy).
Brute-Force
🇭🇺 Lacika555
RdpGuard detected brute-force attempt on SMTP
Brute-Force
🇸🇪 triplecode
Reported from hMailServer
Hacking
Anonymous
SMTP brute force - auth failed
Brute-Force Exploited Host
🇧🇷 radardatelecom
Blocked by Radar da Telecom firewall — abuseipdb
Bad Web Bot Web App Attack
🇬🇧 Hobby Bob
Sep 25 23:08:11 mail postfix/smtps/smtpd[3455644]: warning: unknown[5.26.131.240]: SASL PLAIN authentication failed:
Hacking Brute-Force
🇩🇪 FeG Deutschland
Mail: - login with unknown user - bruteforce
Brute-Force

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