81.84.74.101
Recent Activity
This IP has received recent abuse reports, which causes the score to increase.
- ISP
- NOS COMUNICACOES S.A.
- Usage Type
- Fixed Line ISP
- ASN
- AS2860
- Hostname(s)
- a81-84-74-101.cpe.netcabo.pt
- Domain Name
- nos.pt
- Country
- 🇵🇹 Portugal
- City
- Queluz, Lisbon
Abuse Reports
Total reports
9 from
9 distinct
reporters
First reported
Most recent report
Recent reports
We have received reports of abusive activity from this IP address within the last week. It is
potentially still actively engaged in abusive activities.
| Reporter | IoA Timestamp (UTC) | Comment | Categories |
|---|---|---|---|
| 🇺🇸 shaunc |
Nov 12 23:39:36 mailman postfix/smtpd[5423]: warning: a81-84-74-101.cpe.netcabo.pt[81.84.74.101]: SASL PLAIN authentication failed: authentication failure
|
Brute-Force | |
| 🇳🇱 EGP Abuse Dept |
Unsolicited connection to port 465
|
Port Scan Hacking | |
| 🇮🇹 Inartis |
Nov 13 01:20:55 mail1 postfix/smtpd[2272412]: warning: unknown[81.84.74.101]: SASL PLAIN authentication failed: authentication failure, [email protected]
...
|
Port Scan Brute-Force | |
| 🇫🇷 smtp.com.es |
Brute force attempt.
|
Brute-Force Email Spam | |
| 🇳🇱 olen.net |
Fail2Ban - apollo: Credential stuffing botnet
|
Brute-Force | |
| Anonymous |
Nov 12 21:10:46 bka postfix/submission/smtpd[2538436]: warning: a81-84-74-101.cpe.netcabo.pt[81.84.74.101]: SASL PLAIN authentication failed: (reason unavailable)
...
|
Brute-Force | |
| 🇭🇺 Lacika555 |
RdpGuard detected brute-force attempt on SMTP
|
Brute-Force | |
| 🇵🇾 SecOpsSL |
Nov 12 01:07:44 mail postfix/submission/smtpd[32204]: warning: a81-84-74-101.cpe.netcabo.pt[81.84.74.101]: SASL PLAIN authentication failed: authentication failure
|
Email Spam Brute-Force | |
| 🇨🇿 lp |
Email account brute force: 1 attempts were recorded from 81.84.74.101
2026-11-11T19:28:44+0100 warning: unknown[81.84.74.101]: SASL authentication failed
|
Brute-Force |
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