Medium Severity

Service abuse: Settime.io sender with callback scam intent

Labels

Callback Phishing
Social engineering
Out of band pivot
Sender analysis
Natural Language Understanding

Description

Detects inbound messages from noreply@settime.io that exhibit callback scam characteristics, as identified by natural language understanding with medium or high confidence. Settime.io is a scheduling service that can be abused to send fraudulent messages prompting recipients to call a phone number controlled by threat actors.

References

No references.

Sublime Security
Created Jun 24th, 2026 • Last updated Jun 24th, 2026
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and sender.email.email == "noreply@settime.io"
and any(ml.nlu_classifier(body.current_thread.text).intents,
        .name == "callback_scam" and .confidence != "low"
)
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