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Global Spam Wave Targets Users via Unsecured Zendesk Systems

Global Spam Wave Targets Users via Unsecured Zendesk Systems

First seen 22 Jan 2026, 02:59 UTC

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ThreatCluster AI
ThreatCluster March 12, 2026 at 13:27 UTC

A massive spam wave has emerged, affecting users worldwide through unsecured Zendesk support systems. Starting on January 18, 2026, victims reported receiving hundreds of emails with unusual subject lines, although the messages do not contain malicious links or phishing attempts.

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