Every month, we publish a snapshot of the email domains most actively used in fake account creation and related abuse across the websites and apps protected by Castle. The goal is to give fraud and security teams better visibility into the attacker-controlled email infrastructure that rarely appears in public blocklists

The post Fraudulent email domain tracker: December 2025 appeared first on Security Boulevard.

Antoine Vastel

Source: Security Boulevard
Source Link: https://securityboulevard.com/2025/12/fraudulent-email-domain-tracker-december-2025/