Researchers at Guardio Labs have discovered a massive email ad fraud campaign based on thousands of hijacked domains and subdomains. Threat actors are carrying out SPF-hijacking to bypass spam security by leveraging legitimate domains to send millions of emails for malvertising and click scams for at least 16 months.

The post SubdoMailing Exposé: Massive Domain Hijacking Campaign Used for Ad Fraud, Malvertising, Phishing Emails appeared first on Spiceworks.

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