Protecting Your Organization from Scam Emails Starts at the Gateway

Whether it's sextortion, hitman scams, or other threats - most of these fraud attempts follow the same pattern.
An email pressures the recipient and demands a payment in Bitcoin, Litecoin, or Dash.

These messages are typically automated and contain cryptocurrency wallet addresses used for payment.
Such indicators can be detected and blocked directly at the email gateway.
Suspicious messages should be routed to a central quarantine inbox instead of the user mailbox.

Recommended detection rule:

Email body contains: ([13]|bc1|[LM]|ltc1|X){1}[a-zA-Z0-9]{5,15} und ((L|B)TC|DSH|ite?\s?coin|DASH)

The limit of 5-15 characters for wallet detection is intentional.

Benefit: Employees are not exposed to fear- or shame-based scam content.

Recommendation: Test the rule, align internally, then activate in production.