Frequency
2
occurrences
First Seen
April 20, 2026
Last Seen
April 28, 2026
Related Threat Clusters
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Microsoft Teams Exploited for Helpdesk Impersonation Attacks
Cyber attackers are increasingly using Microsoft Teams to impersonate IT helpdesk staff, employing social engineering tactics to gain remote access to enterprise systems. This method, known as 'cross-tenant helpdesk…
51 articles · Updated April 20, 2026 -
ClickUp API Key Vulnerability Exposes 959 Emails from Fortune 500 Firms
A security vulnerability in ClickUp has led to the exposure of 959 email addresses associated with major Fortune 500 companies and government agencies. The issue arises from a hardcoded Split.io SDK token in ClickUp’s…
3 articles · Updated April 28, 2026
Recent Intelligence Reports
- Security researcher claims ClickUp vulnerability is leaking customer data — Cybernews · April 28, 2026
- Microsoft: Teams increasingly abused in helpdesk impersonation attacks — Bleepingcomputer · April 20, 2026