During an investigation into a large-scale automated account creation attack targeting one of our customers, we observed a burst of suspicious registration activity.

In less than a week, the attackers attempted more than 80,000 registrations.

While investigating the registrations, we identified several unusual email domains being used during the

The post Inside a bot operator’s email verification infrastructure appeared first on Security Boulevard.

Antoine Vastel

Source: Security Boulevard
Source Link: https://securityboulevard.com/2026/03/inside-a-bot-operators-email-verification-infrastructure/