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Fake IT Calls Target Executives in Microsoft 365 Data Theft and Extortion Attack

BACKGROUND
1 SIGNALFIRST DETECTED 7 September 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
Other feeds and industry voices
13 Sept
Attackers Use Passkey Phishing to Hijack Microsoft Cloud Accounts and Exfiltrate Data

Microsoft has disclosed details of two campaigns in which threat actors are abusing third-party email delivery infrastructure to blast financial fraud scam messages and using

REPORT · WHO · The Hacker NewsOPEN STORY
7 Aug
Microsoft 365 AitM Phishing Hijacks Accounts to Collect Payroll and Finance Emails

Cybersecurity researchers have called attention to an active "widespread email-driven phishing campaign" that employs adversary-in-the-middle (AitM) techniques to take control of

REPORT · WHAT · The Hacker NewsOPEN STORY
7 Aug
UNC6671 Vishing Attacks Target Personal Phones to Steal SaaS Data

A recent wave of cyber attacks targeting financial services, private equity, and professional services is attributed to a data extortion group known as UNC6671. "UNC6671 continues

REPORT · HOW · The Hacker NewsOPEN STORY
30 Jul
Microsoft Teams vishing attacks lead to Chaos ransomware attacks

Threat actors are impersonating IT support staff in Microsoft Teams calls to gain remote access to corporate devices and deploy Chaos ransomware in attacks targeting North

REPORT · WHAT · BleepingComputerOPEN STORY
9 Apr
New VENOM phishing attacks steal senior executives' Microsoft logins

Threat actors using a previously undocumented phishing-as-a-service (PhaaS) platform called "VENOM" are targeting credentials of C-suite executives across multiple industries.

REPORT · HOW · BleepingComputerOPEN STORY
Sources
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