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AbuseIPDB » 66.56.81.73

66.56.81.73 was found in our database!

This IP was reported 31 times. Confidence of Abuse is 15%: ?

15%

ISP	VPN Consumer Toronto, Canada
Usage Type	Data Center/Web Hosting/Transit
ASN	AS212238
Domain Name	vpnconsumer.com
Country	🇨🇦 Canada
City	Toronto, Ontario

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

Report 66.56.81.73

Whois 66.56.81.73

IP Abuse Reports for 66.56.81.73:

This IP address has been reported a total of 31 times from 20 distinct sources. 66.56.81.73 was first reported on August 28th 2025, and the most recent report was 1 day ago.

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
🇺🇸 xmission.com	2026-06-17 01:11:19 (1 day ago)	Blocked by UFW (TCP on 20625) Source port: 30364 TTL: 51 Packet length: 60 TOS: 0x08 This report (f ... show more Blocked by UFW (TCP on 20625) Source port: 30364 TTL: 51 Packet length: 60 TOS: 0x08 This report (for 66.56.81.73) was generated by: https://github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan
🇫🇷 matthieul.dev	2026-06-16 12:15:20 (2 days ago)	Blocked by os-abuseipdb; 10 hits, proto=tcp,udp, ports=29888	Port Scan Brute-Force
🇨🇿 lp	2026-04-13 10:51:17 (2 months ago)	Email account brute force: 6 attempts were recorded from 66.56.81.73 2026-04-13T11:38:07+02:00 warni ... show more Email account brute force: 6 attempts were recorded from 66.56.81.73 2026-04-13T11:38:07+02:00 warning: unknown[66.56.81.73]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-13T11:38:07+02:00 warning: unknown[66.56.81.73]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-04-13T11:38:09+02:00 warning: unknown[66.56.81.73]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-13T11:38:09+02:00 warning: unknown[66.56.81.73]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-04-13T11:38:22+02:00 warning: unknown[66.56.81.73]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-13T11:38:22+02:00 warning: unknown[66.56.81.73]: SASL LOGIN authentication failed: authentication failu show less	Brute-Force
🇸🇪 triplecode	2026-04-13 09:38:54 (2 months ago)	Reported from hMailServer	Hacking
🇺🇸 bigscoots.com	2026-04-13 09:38:38 (2 months ago)	(smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25 ... show more (smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-04-13 05:38:08 dovecot_plain authenticator failed for H=([10.10.18.236]) [66.56.81.73]:19771: 535 Incorrect authentication data ([email protected]) 2026-04-13 05:38:14 dovecot_login authenticator failed for H=([10.10.18.236]) [66.56.81.73]:19771: 535 Incorrect authentication data ([email protected]) 2026-04-13 05:38:20 dovecot_plain authenticator failed for H=([10.10.18.236]) [66.56.81.73]:28437: 535 Incorrect authentication data ([email protected]) 2026-04-13 05:38:26 dovecot_login authenticator failed for H=([10.10.18.236]) [66.56.81.73]:28437: 535 Incorrect authentication data ([email protected]) 2026-04-13 05:38:34 dovecot_plain authenticator failed for H=([10.10.18.236]) [66.56.81.73]:8726: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇿🇦 maximonline.co.za	2026-04-07 10:14:07 (2 months ago)	Brute Force SMTP AUTH Attack	Brute-Force
🇨🇿 lp	2026-03-30 13:50:49 (2 months ago)	Email account brute force: 4 attempts were recorded from 66.56.81.73 2026-03-30T14:38:15+02:00 warni ... show more Email account brute force: 4 attempts were recorded from 66.56.81.73 2026-03-30T14:38:15+02:00 warning: unknown[66.56.81.73]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-03-30T14:38:16+02:00 warning: unknown[66.56.81.73]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-03-30T14:38:17+02:00 warning: unknown[66.56.81.73]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-03-30T14:38:17+02:00 warning: unknown[66.56.81.73]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force
🇦🇺 aglenday	2026-03-30 13:14:37 (2 months ago)	(smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/-): 1 in the last 3600 secs; Ports: ; ... show more (smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/-): 1 in the last 3600 secs; Ports: ; Direction: inout; Trigger: LF_TRIGGER; Logs: 2026-03-31T00:14:33.274640+11:00 mail postfix/submission/smtpd[2310181]: warning: unknown[66.56.81.73]: SASL PLAIN authentication failed: (reason unavailable), [email protected] show less	Port Scan
🇺🇸 bigscoots.com	2026-03-30 12:37:08 (2 months ago)	(smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25 ... show more (smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-03-30 08:36:46 dovecot_plain authenticator failed for H=([10.10.18.194]) [66.56.81.73]:35274: 535 Incorrect authentication data ([email protected]) 2026-03-30 08:36:52 dovecot_login authenticator failed for H=([10.10.18.194]) [66.56.81.73]:35274: 535 Incorrect authentication data ([email protected]) 2026-03-30 08:37:02 dovecot_plain authenticator failed for H=([10.10.18.194]) [66.56.81.73]:46591: 535 Incorrect authentication data ([email protected]) 2026-03-30 08:37:04 dovecot_login authenticator failed for H=([10.10.18.194]) [66.56.81.73]:46591: 535 Incorrect authentication data ([email protected]) 2026-03-30 08:37:06 dovecot_plain authenticator failed for H=([10.10.18.194]) [66.56.81.73]:55865: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
Anonymous	2026-03-30 11:13:15 (2 months ago)	(smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/-)	Brute-Force
🇫🇷 UM3	2026-03-30 11:11:35 (2 months ago)	Exim Auth Failed	Brute-Force
🇨🇦 zXero	2026-03-30 11:10:46 (2 months ago)	Fail2Ban automatic report - jail: dovecot-iptables	Brute-Force SSH DDoS Attack
🇷🇸 Smel	2026-03-27 04:34:29 (2 months ago)	Mail/25/465/587-993/995 Probe, Reject, BadAuth, Hack, SPAM -	Email Spam Hacking Brute-Force
🇺🇸 bigscoots.com	2026-03-27 04:11:04 (2 months ago)	(smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25 ... show more (smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-03-27 00:10:38 dovecot_plain authenticator failed for H=([10.10.18.194]) [66.56.81.73]:7261: 535 Incorrect authentication data ([email protected]) 2026-03-27 00:10:44 dovecot_login authenticator failed for H=([10.10.18.194]) [66.56.81.73]:7261: 535 Incorrect authentication data ([email protected]) 2026-03-27 00:10:50 dovecot_plain authenticator failed for H=([10.10.18.194]) [66.56.81.73]:35286: 535 Incorrect authentication data ([email protected]) 2026-03-27 00:10:56 dovecot_login authenticator failed for H=([10.10.18.194]) [66.56.81.73]:35286: 535 Incorrect authentication data ([email protected]) 2026-03-27 00:11:04 dovecot_plain authenticator failed for H=([10.10.18.194]) [66.56.81.73]:57158: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇩🇪 grassau.com	2026-03-26 22:58:52 (2 months ago)	(smtpauth) Failed SMTP AUTH login from 66.56.81.73 (CA/Canada/Ontario/Toronto/-)	Brute-Force

Showing 1 to 15 of 31 reports

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