Sublime Security high experimental mql

Impersonation: Executive using numbered local part

Detects messages from free email providers where the sender's email address uses a pattern commonly associated with executive impersonation, containing 'chair' or 'ceo' followed by numbers in the local part.

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Detection Logic

type.inbound
and sender.email.domain.domain in $free_email_providers
and regex.icontains(sender.email.local_part, '^c(?:hair
| eo)\d+')

Field Validations

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