Microsoft released its email threat trends report for Q2 2026, revealing a 92% reduction in phishing attacks due to disruption operations against the phishing-as-a-service platform Tycoon2FA. However, voice phishing attacks via Microsoft Teams surged nearly tenfold compared to mid-2025, indicating a shift in attack vectors.
The decline in email phishing, with approximately 7.6 billion threats detected, highlights the effectiveness of Microsoft's countermeasures. Yet, the rise in Teams-based attacks, primarily impersonating IT support, suggests that attackers are adapting their strategies to exploit trusted communication channels. The average weekly malicious call attempts increased significantly, peaking in late June 2026.
Looking ahead, Microsoft emphasizes the need for enhanced defenses against social engineering tactics in workplace communication tools. The report underscores the importance of monitoring Teams interactions and calendar invitations to mitigate emerging threats. No further timeline was disclosed at the time of publication.
Editor's Note
The rise in Teams-based phishing attacks reflects a broader trend in cybersecurity where attackers are increasingly leveraging trusted platforms for malicious activities. This shift necessitates a reevaluation of security protocols within organizations, particularly as remote work continues to be prevalent. Enterprises must prioritize training and awareness to combat these evolving threats effectively.
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