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66.132.195.38 has a threat confidence score of 42%. This IP address from United States has been observed in 3 honeypot sessions targeting SMTP, DOCKER protocols. First observed on March 22, 2026, most recently active March 23, 2026.
SMTP interaction identified as an internet-wide scanning probe originating from Censys infrastructure. The client announces itself via EHLO www.censys.io and issues a STARTTLS request to verify TLS upgrade support and collect service capability metadata. This pattern reflects automated reconnaissance and exposure mapping rather than direct exploitation, but still represents active external probing of the SMTP service.