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AbuseIPDB » 66.56.81.57

66.56.81.57 was found in our database!

This IP was reported 46 times. Confidence of Abuse is 24%: ?

24%

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 66.56.81.57

Whois 66.56.81.57

IP Abuse Reports for 66.56.81.57:

This IP address has been reported a total of 46 times from 23 distinct sources. 66.56.81.57 was first reported on September 5th 2025, and the most recent report was 1 month ago.

Old Reports: The most recent abuse report for this IP address is from 1 month ago . It is possible that this IP is no longer involved in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇬🇧 consul.to	2026-04-21 01:18:11 (1 month ago)	Web attack/malicious scanning detected	Web App Attack
🇨🇿 lp	2026-04-20 16:41:49 (1 month ago)	Email account brute force: 6 attempts were recorded from 66.56.81.57 2026-04-19T22:03:00+02:00 warni ... show more Email account brute force: 6 attempts were recorded from 66.56.81.57 2026-04-19T22:03:00+02:00 warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-19T22:03:00+02:00 warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-04-19T22:03:01+02:00 warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-19T22:03:02+02:00 warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-04-19T22:03:10+02:00 warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-19T22:03:10+02:00 warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: authentication failu show less	Brute-Force
🇺🇸 bigscoots.com	2026-04-19 21:20:12 (1 month ago)	(smtpauth) Failed SMTP AUTH login from 66.56.81.57 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25 ... show more (smtpauth) Failed SMTP AUTH login from 66.56.81.57 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-04-19 17:19:59 dovecot_plain authenticator failed for H=([10.25.18.82]) [66.56.81.57]:37297: 535 Incorrect authentication data ([email protected]) 2026-04-19 17:19:59 dovecot_plain authenticator failed for H=([10.25.18.82]) [66.56.81.57]:13371: 535 Incorrect authentication data ([email protected]) 2026-04-19 17:20:05 dovecot_login authenticator failed for H=([10.25.18.82]) [66.56.81.57]:13371: 535 Incorrect authentication data ([email protected]) 2026-04-19 17:20:05 dovecot_login authenticator failed for H=([10.25.18.82]) [66.56.81.57]:37297: 535 Incorrect authentication data ([email protected]) 2026-04-19 17:20:11 dovecot_plain authenticator failed for H=([10.25.18.82]) [66.56.81.57]:36169: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇬🇧 chrisw	2026-04-19 19:15:46 (1 month ago)	Apr 19 20:15:38 l03 postfix/smtpd[30589]: warning: unknown[66.56.81.57]: SASL PLAIN authentication f ... show more Apr 19 20:15:38 l03 postfix/smtpd[30589]: warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: authentication failure Apr 19 20:15:40 l03 postfix/smtpd[30589]: warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: authentication failure Apr 19 20:15:43 l03 postfix/smtps/smtpd[30598]: warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: authentication failure Apr 19 20:15:45 l03 postfix/smtps/smtpd[30598]: warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: authentication failure ... show less	Web Spam Brute-Force Exploited Host
🇭🇺 Lacika555	2026-04-19 17:53:08 (1 month ago)	RdpGuard detected brute-force attempt on SMTP	Brute-Force
🇧🇷 hostseries	2026-04-19 17:31:50 (1 month ago)	Trigger: LF_SMTPAUTH	Brute-Force
🇩🇪 Tamsy	2026-04-19 15:17:40 (1 month ago)	SMTP - Brute-force attack	Brute-Force
🇷🇸 Smel	2026-04-19 15:04:16 (1 month ago)	Mail/25/465/587-993/995 Probe, Reject, BadAuth, Hack, SPAM -	Email Spam Hacking Brute-Force
Anonymous	2026-04-19 14:46:00 (1 month ago)	2026-04-20T00:45:40.112613+10:00 garfield postfix/submissions/smtpd[9638]: warning: unknown[66.56.81 ... show more 2026-04-20T00:45:40.112613+10:00 garfield postfix/submissions/smtpd[9638]: warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: (reason unavailable), [email protected] 2026-04-20T00:45:46.236452+10:00 garfield postfix/submissions/smtpd[9638]: warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: (reason unavailable), [email protected] 2026-04-20T00:45:59.378703+10:00 garfield postfix/submissions/smtpd[9637]: warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: (reason unavailable), [email protected] ... show less	Brute-Force Email Spam
🇩🇪 8legz.net	2026-04-19 14:03:49 (1 month ago)	2026-04-19T15:03:42.245186+01:00 8legz postfix/submission/smtpd[983849]: warning: unknown[66.56.81.5 ... show more 2026-04-19T15:03:42.245186+01:00 8legz postfix/submission/smtpd[983849]: warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: (reason unavailable), [email protected] 2026-04-19T15:03:48.466458+01:00 8legz postfix/submission/smtpd[983849]: warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: (reason unavailable), [email protected] ... show less	Brute-Force
Anonymous	2026-04-19 14:03:10 (1 month ago)	(smtpauth) Failed SMTP AUTH login from 66.56.81.57 (CA/Canada/-)	Brute-Force
🇨🇿 lp	2026-04-13 10:51:11 (2 months ago)	Email account brute force: 6 attempts were recorded from 66.56.81.57 2026-04-13T12:29:02+02:00 warni ... show more Email account brute force: 6 attempts were recorded from 66.56.81.57 2026-04-13T12:29:02+02:00 warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-13T12:29:02+02:00 warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-04-13T12:29:04+02:00 warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-13T12:29:04+02:00 warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-04-13T12:29:11+02:00 warning: unknown[66.56.81.57]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-13T12:29:11+02:00 warning: unknown[66.56.81.57]: SASL LOGIN authentication failed: authentication failu show less	Brute-Force
🇫🇷 UM3	2026-04-13 10:28:52 (2 months ago)	Exim Auth Failed	Brute-Force
🇹🇷 rtbh.com.tr	2026-03-25 20:12:15 (2 months ago)	list.rtbh.com.tr report: tcp/0	Brute-Force
🇹🇷 rtbh.com.tr	2026-03-24 20:12:15 (2 months ago)	list.rtbh.com.tr report: tcp/0	Brute-Force

Showing 1 to 15 of 46 reports

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