ThreatCluster

Surge in Calendar Phishing Attacks Targeting Google and Microsoft Users

First seen 2 Dec 2025, 18:33 UTC •ForbesMsspalert •85% similarity •14

Article Content

Browse articles
ThreatCluster

Sublime Security reported a significant increase in phishing attacks using calendar invites to bypass security measures. These attacks primarily target users of Google Workspace and Microsoft 365, leveraging social engineering tactics to exploit human vulnerabilities. The phishing incidents often involve disguised calendar invitations or .isc attachments.

ThreatCluster AI

Extracted Entities

1 / 2

Community

Browse all →

Tracked Entities in This Story

Apple iCloud GoDaddy Google Calendar Google Workspace Microsoft 365 Microsoft Domain Services Phishing Free Conference Call PowerShell