SaaS Abuse at Scale: Phone-Based Scam Campaign Leveraging Trusted Platforms

Overview This report documents a large-scale phishing campaign in which attackers abused legitimate software-as-a-service (SaaS) platforms to deliver phone-based scam lures that appeared authentic and trustworthy. Rather than spoofing domains or compromising services, the attackers deliberately misused native platform functionality to generate and distribute emails that closely resembled routine service notifications, inheriting the trust, reputation, and authentication posture of well-known SaaS providers. The campaign generated approximately 133,260 phishing emails, impacting 20,049 organizations. It is part of a broader and rapidly escalating trend in which attackers weaponize trusted brands and native cloud workflows to maximize delivery, credibility, and reach. Observed brands […]

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