Outlook Groups is a technology platform tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
Outlook Groups is a technology platform tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed June 23, 2026; most recent activity June 23, 2026.
Cyber attackers are increasingly leveraging Microsoft 365 collaboration tools, specifically Outlook Groups and calendar invites, to execute phishing campaigns. This method disguises malicious activities within routine…
Outlook Groups is a technology platform tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
The most recent intelligence report mentioning Outlook Groups on ThreatCluster is dated June 23, 2026.
Across ThreatCluster reporting, Outlook Groups most frequently co-occurs with Phishing, T1566 - Phishing, Microsoft 365.
The most significant recent cluster is “Phishing Campaigns Exploit Microsoft 365 Collaboration Features” (3 articles · Updated June 23, 2026). Outlook Groups appears across 1 threat cluster in total, listed above with sources.
Outlook Groups appears in 1 intelligence report mention across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.