89.153.164.128

Neutral Activity There is no recent abuse activity, or the IP address is whitelisted.
Abuse Confidence Score
0% Low Risk
153 reports
85 reporters · latest 4 months ago
ISP
NOS COMUNICACOES S.A.
Usage Type
Fixed Line ISP
ASN
AS2860
Hostname(s)
a89-153-164-128.cpe.netcabo.pt
Domain Name
nos.pt
Country
🇵🇹 Portugal
City
Porto, Porto
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No reports in the last 60 days

89.153.164.128 has been reported 153 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
153 from 85 distinct reporters
First reported
Most recent report
Reporter IoA Timestamp (UTC) Comment Categories
🇮🇳 evicky2002
Confirmed malicious by STILWaters CTI platform (score=100, sources=1)
Hacking Brute-Force SSH
Anonymous
<jail> banned by fail2ban
Brute-Force Web App Attack
Anonymous
Failed login attempt detected by Fail2Ban in plesk-postfix jail
Brute-Force
🇩🇪 Paul Smith
Email Auth Brute force attack 8/8 in last day
Brute-Force
Anonymous
SMTP brute force - auth failed
Brute-Force Exploited Host
🇬🇧 stom
2026-05-25T07:29:41.683662ls.fionamaguire-art.com postfix/smtps/smtpd[26194]: warning: unknown[89.153.164.128]: SASL LOGIN authentication failed: authentication failure ...
Brute-Force Email Spam
🇫🇮 danskefilm.dk
SMTP login brute-force attempt.
Brute-Force
🇮🇩 xveil
2026-05-25T13:06:31.704074 mail-honeypot postfix/submission/smtpd[25895]: warning: a89-153-164-128.cpe.netcabo.pt[89.153.164.128]: SASL LOGIN authentication failed: authentication failure ...
Brute-Force
🇩🇪 mnpx
SMTP brute forcing (2× over 3h:28m); first seen here 2026-05-19T05:26Z
Brute-Force
🇩🇪 EGP Abuse Dept
SMTP AUTH attack
Brute-Force
🇳🇱 globcom
Mail-BruteForce
Email Spam Brute-Force
🇦🇺 AWW-Admin
(smtpauth) Failed SMTP AUTH login from 89.153.164.128 (PT/Portugal/a89-153-164-128.cpe.netcabo.pt)
Brute-Force
🇵🇾 SecOpsSL
May 24 18:57:22 mail postfix/smtps/smtpd[13282]: warning: a89-153-164-128.cpe.netcabo.pt[89.153.164.128]: SASL LOGIN authentication failed: authentication failure
Email Spam Brute-Force
🇬🇧 Joe-Mark
Found Blocklist De . proto=tcp . spt=55424 . dpt=25 . NFTABLES . (CCCXCV)
Email Spam
🇩🇪 rd1742
May 24 22:05:18 quad dovecot: auth-worker(3612800): sql(ldroll,89.153.164.128): unknown user
Brute-Force Exploited Host

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